The KB-555 is an aluminum pressure feed cup. It features a "piston grip" carrying handle, and right- or left-handed design for comfort and ease of handling. An easy-open lid and wide cup mouth allow for fast filling and clean up. The cups also feature a solvent-resistant check valve, a 0-30 psi air gauge, and a wide base for greater stability. Pressure Cups are supplied with disposable cup liners, which reduce clean-up and solvent use. The unique lid liner also pretects the underside of the lid, preventing check valve problems. Order KK-5051 disposable cup liner kit.