20017X283 D-15 Bypass Valve

D-15 Bypass Valve

Used on the following:

• All CSI Signature 3 & 4 filter/softener models.
• All WaterSoft Isobar 3 & 4 filter/softener models.
• MF40 MonstrFlow Filters
• Enpress PF40 Pioneer Filter (models w/ blue knobs only)