In-Hull Tank Hardware Kit. Contains: 4 Stainless Hex Head 3/8-16 X 0.75 screws, 4 Stainless 3/8 split lock washers, 2 Stainless Hex 1/4 NPT Plug.

Fits: R111, R199, R299, R399, R599

Contains: 4 Stainless Hex Head 3/8-16 X 0.75 Screws, 4 Stainless 3/8" split lock washers, 2 Stainless Hex 1/4 NPT Plug.