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1-5/8 in Strut Channel Crush-Rib End Cap
Press-fit end cap for 1-5/8 x 1-5/8 in strut channel (Unistrut P1000 style, 41.3 mm square, 12 ga wall, about 35.9 mm inside width) that covers the sharp burred end of a cut length so it stops catching shins and knuckles. A 44 x 44 x 3 mm flange hides the cut edge; the hollow 35.4 x 10 mm plug sits against the channel back, below the lips, and six vertical crush ribs bring it to 36.6 mm so it bites into the steel with no screws. A 5.5 mm M5 clearance hole in the flange centre takes a bolt, eye or cord.
3/4 in PVC Condensate Drain Critter Guard
A slip-on slotted end cap for the outside end of a 3/4 in schedule 40 PVC AC condensate line (26.7 mm OD). Six crush ribs grip the pipe, and 2.4 mm drain slots let water and algae out while keeping wasps, mud daubers and lizards from nesting in the line and backing up the air handler. Measures 32 mm OD x 30 mm tall. The pipe stops on an internal ledge 3 mm above the grate, which leaves a small chamber so water can spread across all the slots.
Flex-Fin Tension Shower Rod End Cap
A replacement wall foot for spring-tension shower and curtain rods whose rubber caps have cracked. Six angled flex fins inside a 29 mm cup grip any 22–26 mm tube (7/8 in to 1 in) and stop it spinning. The foot is a 56 mm flat disc with a 45° flare into the cup; stick a 50 mm rubber furniture pad on the face so it grips tile.
608 Bearing Vacuum Brush Roll End Cap
A replacement end cap for an upright vacuum's beater-bar brush roll. It holds a standard 608 bearing (8 x 22 x 7 mm) in a 22.05 mm press-fit pocket, and a 38 mm hair-guard flange keeps hair from winding into the bearing. The tapered spigot has eight crush ribs that wedge into roller tube bores from about 27 to 32 mm. Your old axle and bearing go straight back in, so you don't have to buy a $25 roller assembly to replace a cracked $5 cap.