Aqua Science Boshart Industries, 5" Aluminum, Watertight, Vermin Proof, Locking Aluminum well cap just Price of $30.00.Some of detail about Boshart:5" WATERTIGHT MIRACLE WELL CAPClass: 35501Casing Size O.D.
: 5-9/16"Air Vents: (2) 3/4Conduit Connection: 1" FPTCasing Size I.D.
: 5"Unit Weight: 3.70Materials: AluminumStandard: No Lead Lead FreeStandard: Water Systems Council Product FeaturesEasy to install, easy access for maintenance • Vermin proof with large screened air vents • Greater clearance for submersible pump cable • Stainless steel hardware • O-ring system ensures reliable watertight seal between well casing and retainer ring • A second O-ring is used to seal cover and retainer ring, a positive compression seal is achieved by tightening 4 bolts • Grounding terminal with bolt provided • A well log is provided inside each cap to record installation data/specifications