Genuine Zefal HP & HPX Frame Pump NEW internal easy to change 18mm Piston

Breathe new life into your HP series Pumps. These are Current production... Fresh from France ! This listing is for the Zefal Easy To Change... 18mm Pump Piston seal for all HP and HPX variants, regardless of pump length. Please look at the listing Photographs for installation hints... the Wider end of the "Cup Seal" faces towards the interior of the pump tube. If your pump is not listed in this listing... DO NOT ORDER THIS SEAL ! Repeat... If you do not have Genuine Zefal HP or HPX Pump...do not order this seal.