2-Step 35 Inch Wide Standard Plus Commercial Ladder 1.90 x .065 Inch - Stainless Steel Treads size-in-gallons_1-15 They also release easily

They also release easily

Additional weight can be added to completely submerge the manikin at 140 lbs

This is a Pentair Replacement Black Manual Air Relief Assembly for SM and SMBW 4000 Series D

see the Epoxy Coated Models CCSP

2-Step 35 Inch Wide Standard Plus Commercial Ladder 1.90 x .065 Inch - Stainless Steel Treads size-in-gallons_1-15 They also release easilyThis commercial grade pool ladder has 2 steps for swimmers to get in and out of your pool. The distance between the front (pool) rail and back (anchor) rail is 35 inches and the overall outside diameter of the rail tubing is 1. 90 inches. S. R. Smith Standard Plus ladders are made from thick stainless steel tubing and are suitable for heavy duty use in commercial aquatic facilities. Order anchor sockets and escutcheons separately.