IN-LINE SIGHT GLASS Existing customers can log in to their account for additional savings Call for price Categories: Dry Bulk, Dry Bulk Parts, Dry Bulk Tank Truck Parts, Liquid - Petroleum, Petroleum Tanks Truck Parts Specification Specifications Part # Description 3544CA 4" Coupler X 4" Adapter 3533CA 3" Coupler X 3" Adapter 3543CA 4" Coupler X 3" Adapter 3534CA 3" Coupler X 4" Adapter 3533AA 3" Adapter X 3" Adapter 3544AA 4" Adapter X 4" Adapter 3544CC 4" Coupler X 4" Coupler 3533CC 3" Coupler X 3" Coupler 3543CC 4" Coupler X 3" Coupler Spring Replacement Kits for Hose Tube Doors Part # Description TD68RK 6" and 8" repair kit, includes stainless steel springs, bushings and pin TD7RK 7" repair kit, includes stainless steel springs, bushings, pin and washer SPRG-A4630 Replacement stainless steel spring only Related products Hot Air Blower Hose – Rubber Tan Bulk Hose – Hardwall Grooved Pipe Coupling – Flexible Cam Couplings – Import D