seals around the opening to be covered. FYI - I used silicon sealant around the rim to make sure it doesn't come out. The flange will likely hold it but wanted to make sure it offered double protection with silicone.
High-Quality White Plastic Flush Type Plugs for Industrial Hardware Applications
9 Review
Continental ContiVikingContact 7 195/65 R15 95T winter
21 Review
π§Ό Efficient Cleaning with Canplas 193064 Flush Cleanout - 4 Inch Diameter
9 Review
π Marinco 6365CRN Locking Plug 250V: Secure and Reliable Power Connection Solution
9 Review