Expandable Mechanical Seal Cleanout Pipe Plug For Sewer Cap Cover No Nonsense Leakproof Twist Plug With Stainless Steel And Nitrile Rubber Heat Resistant Oil Resistant Anti Freeze Wear Resistant Heavy Duty

Expandable seal plug for sewer cleanouts - single unit twist
✔️ Stainless steel frame with NBR seal; heat, oil, and freeze resistant

This rubber expansion plug is a twist/turn pipe plug designed to seal openings in drains and pipes. It replaces standard 3-3/8" to 3-15/16" (85-100 mm) test and seal plugs and is used for drainage holes, cleanouts, and low-pressure tests in kitchens, bathrooms, gardens, automotive, construction, and marine settings.

✅ Fits 85-100 mm openings (3-3/8" to 3-15/16")
✅ Stainless steel and NBR rubber construction resists heat, antifreeze, oil, and rust inhibitors
✅ Removable wrench handle for easy tightening and removal
✅ Not suitable for non-circular holes or long-term high-temperature/high-pressure use

💡 What is an expandable rubber pipe plug used for in drainage systems and how does it work?

This handy device seals openings by expanding rubber against the pipe walls when you tighten the handle, creating a leak-proof seal.

- handy for temporary tests and cleanouts in kitchens, bathrooms, pools, boats

- fits openings from 85-100 mm (3-3/8" to 3-15/16")

- built with stainless steel and NBR rubber for heat, oil, and antifreeze resistance

- not for non-circular holes or long-term high-temp/high-pressure use