Transmission Line Adapter - 3/8" Rubber Hose to Quick Connector – AGS Company Automotive Solutions
Rubber-Cal "Recycled Flooring" 3/8 in. x 4 ft. x 9 ft. - Black Rubber Mats - 48 x 108 - Overstock - 8238730
Dorman- AutoGrade Black 3/8in Rubber Vacuum Cap 3 Piece
40pcs Round Rubber End Caps 1/8" 1/4" 3/8" 1/2" Black Vinyl Cover Screw Thread Protectors Assortment Kit|Cable End Caps| - AliExpress
IncStores 3/8 Inch Thick Heavy Duty Rubber Flooring Roll | Flexible Recycled Rubber Roll Flooring for a Stronger and Safer Basement, Home Gym, Shed, or Trailer | Blue/Gray, 4ft x 10ft - - Amazon.com