Boshart Industries watertight well caps are easy to install and provide easy access for maintenance. They feature large screened air vents making them vermin proof. The design offers greater clearance for submersible pump cable and each well cap has a grounding terminal with a bolt. Two O-rings ensure a reliable watertight seal both between the well casing and retainer ring as well as between the seal cover and retainer ring. Stainless steel hardware is used for maximum corrosion resistance. A well log is provided inside each cap to record installation data and specifications. Each well cap has a grounding terminal with a bolt. Boshart Industries Watertight Well Cap, Lead Free, Series: WTC Series, For Use With: 6 in ID x 6-5/8 in OD Steel or PVC Well Casings, Specifications: 1 in FNPT, Cast Iron, Powder Coated