K-Pump O-Rings, Adapters & K-Lube
The small high pressure O-ring (2 5/8 inch) fits every K-Pump, and the large high volume O-ring (4 inch) fits the two-stage K-40 and K-400. K-Pump recommends greasing your pump twice a year with its K-Lube synthetic grease.
The Universal Adapter fits inside the K-Pump tip for hard-to-inflate valves like Boston models, and the K-Air II stops at 15 psi for inflatable boards. Shop K-Pump hand pumps or the K-Pump brand page.