How long do they last before replacement?

I really cannot say. I installed one over a year ago and it is still working like new. I pulled it out about five months ago and it looked clean, so I put it right back. I estimate a lifetime of at least3 years before I might want to replace it.

Will this prevent water backup in an RV shower drain?

Hi, This shower sink drain is suitable for standard 1.45”to 2.7" pipe, please reference to your RV shower drain. Will prevent backflow of sewers, filter and prevent blocking.

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Shower Floor Drain Backflow Preventer Valve Sewer Core Drainage Insert Drain Plug Hair Catcher Gas Sealer Floor Strainer Trap Seal (Blue-2Pack)

Shower Floor Drain Backflow Preventer Valve Sewer Core Drainage Insert Drain Plug Hair Catcher Gas Sealer Floor Strainer Trap Seal (Blue-2Pack)

Product ID: 413653724

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Details

Brand
NILSTOREY
Colour
Blue-2pack
Material
Silicone (ABS)
Finish Type
Brushed
Style
Modern

💨360° quick drainage

🚿Fits 1.45"-2.7" pipes

🛡️Backflow & odor seal

Description

🛁 Seal the deal on freshness and flow—never fear backflow again!

MULTI ROOM ESSENTIAL - Perfect for showers, kitchens, basements, and laundry rooms—upgrade every drain in your home.
TURBO DRAINAGE DESIGN - 360° drainage accelerates water flow, preventing clogs even under heavy use.
DURABLE STABLE BUILD - Crafted from premium ABS and soft silicone for strong suction and long-lasting performance.
UNIVERSAL FIT ZERO HASSLE - Fits standard 1.45" to 2.7" pipes for seamless installation across all your drains.
ODOR BLOCKER EXTRAORDINAIRE - Deodorizing seal ring locks out sewer gases, keeping your space fresh and inviting.

The NILSTOREY Shower Floor Drain Backflow Preventer Valve is a durable, easy-to-install solution designed to fit standard 1.45" to 2.7" pipes. Featuring a 360° quick drainage system and a deodorizing seal ring, it effectively prevents sewer backflow, clogs, and odors. Made from high-quality ABS and silicone, this modern blue 2-pack is ideal for multiple household drains including showers, kitchens, basements, and laundry areas.

Specifications

Brand	NILSTOREY
Colour	Blue-2pack
Material	Silicone, Acrylonitrile Butadiene Styrene (ABS)
Finish Type	Brushed
Style	Modern
Number of Items	1
Manufacturer	NILSTOREY
Color	Blue-2pack
Shipping Weight	0.06 Kilograms
Item Model Number	NS-DL2
Item Part Number	NS-DLG2
Primary material	Silicone, Acrylonitrile Butadiene Styrene (ABS)
Capacity	1 Pack

Reviews

P**R

Not useful

Back flow water is not stopping .the size also small

23.07.2022

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