Will this work on an old drain pipe with a 2 1/2 inch inside diameter pipe?

No, this would not fit on a 2.5 inside diameter.

Does it work in a shower drain without a p trap?

My guess is that it should work in your shower drain. A P-trap prevents sewer gasses from entering the home. When full of water it is nothing more than a drain. Give it a try - can;t hurt. VERY pleased with the performance of our seal!

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

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Oatey 43745 Seal for 2 Inch Shower and Floor Drain, Black

Product ID: 313384292

Details

Brand
Oatey
Item dimensions L x W x H
24.1 x 10.2 x
Item form
item_form
Material
Plastic
Style
2 Inch Shower

⚫sleek black finish

💧2-inch precision fit

🛠️durable plastic build

274.96 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Seal the deal on your drain game with Oatey’s sleek, no-pool solution!

SLEEK BLACK FINISH - Modern aesthetic that blends seamlessly with contemporary bathroom designs
FLAWLESS DRAIN SEAL - Prevents water pooling for a pristine, worry-free shower experience
PRECISION 2 INCH FIT - Engineered to perfectly match standard shower and floor drains
TRUSTED BRAND RELIABILITY - Oatey’s proven quality ensures long-term performance and peace of mind
DURABLE PLASTIC CONSTRUCTION - Built to last with resilient materials that withstand daily wear

The Oatey 43745 is a high-quality 2-inch shower and floor drain seal designed to prevent water pooling and maintain optimal drain performance. Crafted from durable plastic with a sleek black finish, it offers a precise fit for standard drains, ensuring long-lasting reliability from a trusted plumbing brand.

Specifications

ASIN	B091S43BTW
Best Sellers Rank	1,298,425 in DIY & Tools ( See Top 100 in DIY & Tools ) 4,910 in Drain Protectors 21,623 in Tap Parts
Brand	Oatey
Colour	Black
Customer Reviews	4.5 4.5 out of 5 stars (293)
Global Trade Identification Number	00038753437453
Included Components	Oatey - 43745
Item Dimensions	24.1 x 10.2 x 20.3 centimetres
Item Form	item_form
Item Highlight	Seal for 2-Inch Shower, Floor drains Comes in a black finish
Item Type Name	Oatey - 43745
Manufacturer	Oatey
Manufacturer Part Number	43745
Material	Plastic
Model Number	Oatey - 43745
Number of Items	1
Number of Packs	1
Style Name	2 Inch Shower and Floor Drain
UPC	038753437453
Unit Count	1.0 count

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