Will this be a suitable replacement for PI21R3-16?

Yes. This is a direct replacement for all that start Pi21R such as your Pi21R3-16.

Is this channel 3 and 4

Don't know what you mean. This is needed for hooking up your dish to the receiver. It has no channels on it.

Will this replace a king ii power injector part :22037 on a king quest pro sattelite?

I don’t know. Probably ask the king customer service

Can this be used for hd24-500 reciever

Google your reciever model and ask, I believe it can,but look on your web browser and make sure.

At And T Formerly Directv 21 Volt Power Inserter All

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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141.69 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power your DIRECTV experience like a pro—never miss a moment!

MINIMAL SIGNAL LOSS - Only 2 dB insertion loss keeps your signal strong and your binge sessions flawless.
PLUG PLAY F TYPE PORTS - Easy installation with standard F-type connectors—no tech headaches, just pure convenience.
OPTIMIZED FREQUENCY RANGE - Covers 2000 kHz to 2150 MHz to maintain crystal-clear satellite signal quality.
SEAMLESS SIGNAL POWER BOOST - Ensures ultra-reliable power delivery to your DIRECTV SWM LNBs for uninterrupted streaming.
COMPACT LIGHTWEIGHT DESIGN - At just 11.8 ounces and 3x6x4 inches, it fits discreetly into any setup without clutter.

The AT&T PI21 Power Inserter is a compact, high-performance signal amplifier designed specifically for DIRECTV Slim Line Dish Antennas. Operating within a 2000 kHz to 2150 MHz frequency range and supporting 100-120 V AC input, it ensures minimal 2 dB signal loss through F-type ports, delivering reliable power to SWM LNBs for consistent satellite reception.

Specifications

ASIN	B005AME7Y8
Best Sellers Rank	#50,189 in Automotive ( See Top 100 in Automotive ) #111 in Power Inverters
Customer Reviews	4.6 4.6 out of 5 stars (1,526)
Date First Available	March 20, 2009
Is Discontinued By Manufacturer	No
Item Weight	11.8 ounces
Item model number	PI21R1-03
Manufacturer	DIRECTV
Product Dimensions	3 x 6 x 4 inches

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141.69 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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AT&T (Formerly DIRECTV) 21 Volt Power Inserter for All DIRECTV SWM LNBs (PI21)

Description

Specifications

Common Questions