Size 11 Green Neoprene Rubber Stoppers are tapered Rubber Stoppers that will plug food containers, lab vials and other openings. Manufactured from Neoprene Rubber. Neoprene Rubber is suitable to a temperature of 275 degrees F and suitable for use with petroleum products, minerals, oils and fats.
Green rubber stopper
Fits great, good tough material, I like it a lot, I will buy moore.
Bret A., Michigan - 10/7/2016
#10 Neoprene Rubber Stopper
A few years ago our lawn service managed to decapitate a 'clean out' leading to our bathroom main drain. Being embedded in stucco this was not an easy fix and would require extensive concrete work to expose enough pipe to replace the fractured fitting. Since we've witnessed creepy crawlies using this as a turnstile into our shower I measured the inside diameter and selected a suitable bung, in this instance a #11 fit the bill perfectly.
Thanks to the fine people at WIDGETCO we're now back to airtight and bug proof, I wish I'd done this when it first happened..