$8.00
Replacement O-ring for 4″ and 6″ diameter Carlson Pumps.
— OR —
Replacement O-Ring for the 4″ or 6″ older model Carlson Hand Pumps. Carlson used the Rubber O-Rings pre 2004. If your pump has a green hose, it is an older model and should utilize the Rubber O-Rings.
4, 6