If the o-rings on your Hypro D252 Diaphragm Pump have sustained damage, you will need to replace them in order to keep your pump performing up to standards. When this is the case, use the o-rings included in the Hypro D252 O-Ring Repair Kit - 9910-KIT2409 as suitable replacements.
If your Hypro D252 is in constant use, it is recommended to replace the o-rings every 6 months or 1000 hours so your pump remains reliable in the field.
Hypro 9910-KIT2409 O-Ring Repair Kit includes: