---
product_id: 27418260
title: "Pentair Pentek 166219 Big Clear 10\" x 4.5\" Filter Housing, 1\" NPT"
brand: "pentek"
price: "1305.47 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Pentek"
url: https://www.desertcart.tn/products/27418260-pentair-pentek-166219-big-clear-10-x-4-5-filter
store_origin: TN
region: Tunisia
---

# 15 gpm max flow Clear Lexan sump Built-in pressure relief Pentair Pentek 166219 Big Clear 10" x 4.5" Filter Housing, 1" NPT

**Brand:** pentek
**Price:** 1305.47 DT
**Availability:** ✅ In Stock

## Summary

> 💧 Clear water, clear advantage—filter smarter, live better.

## Quick Answers

- **What is this?** Pentair Pentek 166219 Big Clear 10" x 4.5" Filter Housing, 1" NPT by pentek
- **How much does it cost?** 1305.47 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/27418260-pentair-pentek-166219-big-clear-10-x-4-5-filter)

## Best For

- pentek enthusiasts

## Why This Product

- Trusted pentek brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Instant Visual Monitoring:** Transparent Lexan housing lets you inspect filter status without disassembly—stay ahead of maintenance effortlessly.
- • **High-Flow Heavy Duty Filtration:** Supports up to 15 gallons per minute with minimal pressure drop—perfect for whole-house water clarity.
- • **Safe & Simple Cartridge Changes:** Integrated pressure relief button ensures hassle-free, leak-free filter replacements every time.
- • **Durable, Chemical-Resistant Build:** Reinforced polypropylene and Buna-N o-ring rated for 100 psi and 40-100°F—engineered for longevity and reliability.
- • **Universal Cartridge Compatibility:** Fits all standard 10" x 4.5" Big Blue and heavy-duty cartridges—flexibility that adapts to your water needs.

## Overview

The Pentair Pentek 166219 Big Clear 10" x 4.5" Filter Housing is a robust, whole-house water filtration solution designed for high-flow applications up to 15 gpm. Featuring a transparent Lexan sump for easy visual inspection and a built-in pressure relief button for safe maintenance, it supports all standard 10" heavy-duty cartridges. Constructed from durable polypropylene with chemical resistance and rated for up to 100 psi, this housing combines industrial-grade quality with user-friendly design, making it a trusted choice for both residential and commercial water purification systems.

## Description

Pentek's Big Blue filter housings offer the versatility to meet all of your large-capacity filtration needs, including high-flow and heavy-sediment applications. The PENTEK-BIG-CLEAR-LX-10 is manufactured from durable polypropylene and has excellent chemical resistance. The BIG-CLEAR-LX-10 housing is compatible with a wide variety of heavy duty filter cartridges and offers on-site examination of flow, performance and cartridge life making it ideal for many residential and commercial applications.

Review: Excellent quality item! - This unit is part of my water purification system. I already have a Pentair softener, and it has been working well for some time without any issues. It is also worth noting that many filter housings include marketing claims, but they are not NSF certified for material safety for potable water—this one is. I have never done plumbing before, but I was able to complete a decent installation. Currently, the setup is as follows: well water first passes through a Rusco sediment filter with an auto-flush valve (which I configured using a normally closed ball valve and a timer), then through the Pentair softener, and finally through a Big Blue filter. For the final stage, I am using the Pentair Pentek EP-BB Big Blue Carbon Water Filter (10-inch whole-house carbon block replacement cartridge with bonded powdered activated carbon), which is also NSF certified. The Rusco sediment filter is auto-flushed for one minute every day. After the job, there were zero leaks. So, I am very happy!!!!
Review: Quality of the original PenPure Big Blue! - It's been a while, but I needed a Big Blue housing for a project. I didn't even know if they were still available, but a quick scan and up pops this Pentek - It's gotta be Pen Pure - right? Wow they're still selling them! Price is right, ordered one right up, couple days later, another desertcart box.... When I saw "Pentair" on the label, I took a deep breath. Not made any better by the "Made in China" that followed. Oh-oh - this could be bad! Hmm.. looks pretty decent, No!, it's good! (Pentair is a huge industrial corporation, highly respected) I was in the commercial water treatment/RO business back in years ago, and the Pen Pure brand was well respected, as was their version of the standard Big Blue 4.5" (in 10 or 20") housing, often used as a prefilter for smaller commercial RO systems with a depth filter and a CBC to prep for a TFC membrane. That's what this is being used for, and I'm very happy to say, the quality is as good as they were back 20+ yrs ago. You can't say that about too many things that have aged that long and had their manufacture moved to China. I wish it was made in the US, but if it had, I doubt it would be sold at this price point. (We used to get a case of 4 for $99, and once in a while the wholesaler would throw in elements if you bought a few boxes) Small things tell you about quality, and how much a manufacturer cares about it. As always, I grabbed my silicone grease to lube the o-ring, and I also grease the threads lightly too to ease removal and prevent "plastic stick" which can be annoying on this size housing. Anyway, I opened it up and there was the o-ring (not in the groove, in the bowl - a good thing, so it doesn't take a set) and it was already lightly lubed up. A manufacturer that cares enough to do that cares about their product. Always, and still a Penn-Pure/Pentek/Pentair Big Blue customer. 5 stars across the board! Even "Flavor" - I assume they mean the water? That would depend more on the element than the housing, and raw water. One negative - No L bracket and screws with the housing. They used to come gratis, heck I had dozens of them floating around I didn't need, now think I can find one? Still giving five stars on "Ease of install" even though I should take one back, I figure these are available in 1" and 3/4" which saved me some grief. If you're listening, desertcart and Pentair, at least mark "bracket not included" and link one. They're not the same as a standard 10" x 2.5 one. The bolt pattern on a Big Blue is 3" x 3" with 4" to center to the bend - hope that helps someone out. (love that they kept the Imperial pattern) You can drill and tap 1/4npt for a gauge, and the original brackets are notched both sides to clear the bleeder and gauge (and allow 'flipping' if necessary) Bottom Line: These are a high quality housing at a fair price, and I highly recommend them.

## Features

- HEAVY DUTY WHOLE HOUSE FILTRATION - Designed for high-flow applications with a 1-inch NPT connection and support for flow rates up to 15 gpm with only 1 psi pressure drop.
- CLEAR SUMP FOR VISUAL MONITORING - Transparent Lexan sump allows on-site inspection of water flow, cartridge condition, and remaining filter life without disassembly.
- PRESSURE RELIEF FOR EASY MAINTENANCE - Built-in pressure relief button allows safe depressurization before opening the housing for cartridge replacement.
- FITS ALL 10-INCH HEAVY DUTY CARTRIDGES - Compatible with any 10-inch x 4.5-inch Big Blue or heavy duty sediment, carbon, or specialty filter cartridge.
- DURABLE CONSTRUCTION - Reinforced polypropylene cap and Lexan sump with Buna-N o-ring. Overall dimensions are 13.30 x 7.28 inches. Rated for temperatures of 40-100 degrees F and maximum pressure of 100 psi.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004H36N66 |
| Best Sellers Rank | #70,488 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #700 in Replacement Under-Sink Water Filters |
| Brand | Pentek |
| Brand Name | Pentek |
| Capacity | 180 cubic inches |
| Container Type | Cartridge |
| Customer Reviews | 4.4 out of 5 stars 889 Reviews |
| Global Trade Identification Number | 00799932590597 |
| Installation Type | Whole House Water Tank |
| Item Dimensions L x W x H | 7"L x 7"W x 12"H |
| Item Type Name | Whole House Heavy Duty Water Filter Housing with Pressure Relief Button, 10-Inch, Blue/Clear |
| Item Weight | 5.4 pounds |
| Manufacturer | Pentek |
| Material | Polypropylene (PP) |
| Material Type | Polypropylene (PP) |
| Maximum Flow Rate | 15 gpm |
| Model Name | Big Clear Filter Housing, 1" NPT #10 |
| Model Number | 166219 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Other Special Features of the Product | Heavy Duty Clear Lexan Housing |
| Package Information | Cartridge |
| Part Number | 166219 |
| Power Source | Manual |
| Product Dimensions | 7"L x 7"W x 12"H |
| Purification Method | Distillation |
| Special Feature | Heavy Duty Clear Lexan Housing |
| UPC | 799932590597 807032970802 809390001488 806294982516 808112758587 809188527480 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 100 °F |

## Product Details

- **Brand:** Pentek
- **Capacity:** 180 cubic inches
- **Installation Type:** Under Sink
- **Item Weight:** 5.4 pounds
- **Material:** Polypropylene (PP)
- **Package Information:** Cartridge
- **Power Source:** Manual
- **Product Dimensions:** 7"L x 7"W x 12"H
- **Purification Method:** Distillation
- **Special Feature:** Heavy Duty Clear Lexan Housing

## Images

![Pentair Pentek 166219 Big Clear 10" x 4.5" Filter Housing, 1" NPT - Image 1](https://m.media-amazon.com/images/I/71UnGiE135L.jpg)
![Pentair Pentek 166219 Big Clear 10" x 4.5" Filter Housing, 1" NPT - Image 2](https://m.media-amazon.com/images/I/71kHrr+oBkL.jpg)
![Pentair Pentek 166219 Big Clear 10" x 4.5" Filter Housing, 1" NPT - Image 3](https://m.media-amazon.com/images/I/711TVvCQCKL.jpg)
![Pentair Pentek 166219 Big Clear 10" x 4.5" Filter Housing, 1" NPT - Image 4](https://m.media-amazon.com/images/I/31rBVizkwLL.jpg)

## Available Options

This product comes in different **Pattern, Color, Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent quality item!
*by C***A on June 29, 2026*

This unit is part of my water purification system. I already have a Pentair softener, and it has been working well for some time without any issues. It is also worth noting that many filter housings include marketing claims, but they are not NSF certified for material safety for potable water—this one is. I have never done plumbing before, but I was able to complete a decent installation. Currently, the setup is as follows: well water first passes through a Rusco sediment filter with an auto-flush valve (which I configured using a normally closed ball valve and a timer), then through the Pentair softener, and finally through a Big Blue filter. For the final stage, I am using the Pentair Pentek EP-BB Big Blue Carbon Water Filter (10-inch whole-house carbon block replacement cartridge with bonded powdered activated carbon), which is also NSF certified. The Rusco sediment filter is auto-flushed for one minute every day. After the job, there were zero leaks. So, I am very happy!!!!

### ⭐⭐⭐⭐⭐ Quality of the original PenPure Big Blue!
*by S***4 on July 9, 2021*

It's been a while, but I needed a Big Blue housing for a project. I didn't even know if they were still available, but a quick scan and up pops this Pentek - It's gotta be Pen Pure - right? Wow they're still selling them! Price is right, ordered one right up, couple days later, another Amazon box.... When I saw "Pentair" on the label, I took a deep breath. Not made any better by the "Made in China" that followed. Oh-oh - this could be bad! Hmm.. looks pretty decent, No!, it's good! (Pentair is a huge industrial corporation, highly respected) I was in the commercial water treatment/RO business back in years ago, and the Pen Pure brand was well respected, as was their version of the standard Big Blue 4.5" (in 10 or 20") housing, often used as a prefilter for smaller commercial RO systems with a depth filter and a CBC to prep for a TFC membrane. That's what this is being used for, and I'm very happy to say, the quality is as good as they were back 20+ yrs ago. You can't say that about too many things that have aged that long and had their manufacture moved to China. I wish it was made in the US, but if it had, I doubt it would be sold at this price point. (We used to get a case of 4 for $99, and once in a while the wholesaler would throw in elements if you bought a few boxes) Small things tell you about quality, and how much a manufacturer cares about it. As always, I grabbed my silicone grease to lube the o-ring, and I also grease the threads lightly too to ease removal and prevent "plastic stick" which can be annoying on this size housing. Anyway, I opened it up and there was the o-ring (not in the groove, in the bowl - a good thing, so it doesn't take a set) and it was already lightly lubed up. A manufacturer that cares enough to do that cares about their product. Always, and still a Penn-Pure/Pentek/Pentair Big Blue customer. 5 stars across the board! Even "Flavor" - I assume they mean the water? That would depend more on the element than the housing, and raw water. One negative - No L bracket and screws with the housing. They used to come gratis, heck I had dozens of them floating around I didn't need, now think I can find one? Still giving five stars on "Ease of install" even though I should take one back, I figure these are available in 1" and 3/4" which saved me some grief. If you're listening, Amazon and Pentair, at least mark "bracket not included" and link one. They're not the same as a standard 10" x 2.5 one. The bolt pattern on a Big Blue is 3" x 3" with 4" to center to the bend - hope that helps someone out. (love that they kept the Imperial pattern) You can drill and tap 1/4npt for a gauge, and the original brackets are notched both sides to clear the bleeder and gauge (and allow 'flipping' if necessary) Bottom Line: These are a high quality housing at a fair price, and I highly recommend them.

### ⭐⭐⭐⭐⭐ It works
*by J***M on July 18, 2026*

Works well. Would buy again.

## Frequently Bought Together

- Pentair Pentek 166219 Big Clear Filter Housing, 1" NPT #10 Whole House Heavy Duty Water Filter Housing with Pressure Relief Button, 10-Inch, Blue/Clear
- Pentair Pentek DGD-5005 Big Blue Water Filter, 10-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 10" x 4.5", 5 Micron, Pack of 1

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-27*