Model PP-8BF - Flex Burpable Pit Plug
Fits 6'-8' sewer pipe. Large 2' opening for easy filling with sand ** Fill 3/4 full of sand and seal fill hole.**. Flex series takes the shape of the pipe opening often ovalled when the pit concrete is poured this seals the liquid in to reduce manure flow problems. Flare at the top of the plug with a strong top and heavy side walls reduces the chance of plugs being pulled into the pipe. Large 1.5' hole in the handle allows for easy locating when pulling the plug. Extended bottom on B or burpable series allows plug to raise with gas pressure and drop back properly to seal. Also available in poly (PP-8B). Other models: PP-9/12F & PP-9/12BF Both fit 9'-12' pipe range and are the flex series.