Custom Roto Molding 3" Holding Tank Grommet 93 11-0997Manufacturer: Custom Roto Molding Availability: 72 in stockSKU: 11-0997 Item No: 11-0997 Brand: Custom Roto MoldingMfg No: 93Wt: 0.25UPC: 765053040501 $7.09 Qty: Add to cart Ship toSelect countryUnited States of America *Other *Shipping MethodNameEstimated DeliveryPriceNo shipping optionsApply Custom wishlist OKAdd to wishlistAdd to compare listEmail a friend1:Grommets for use in polyethylene holding tanks. Simple to install. Cut a hole in the tank where you want the grommet installed. Insert the grommet and seal the edge with a silicone sealant. Slide the drain pipe into the flexible grommet and use a hose clamp to seal. 3 inch Grommet.