PRTHORING7 O-Ring Kit for Express Water RO Systems (PRTHORING6)

Product Features:

• O-Ring Kit Part Number PRTHORING7 (replaces discontinued part number PRTHORING6).
• Compatible with Express Water Standard 3.5” Diameter RO Water Filter Housings and 2” Membrane Housing (such as their “RO System”, “ALK System, “UV System”, “ION System” and other models that specifically call for o-ring kit part numbers PRTHORING7 or PRTHORING6). Not compatible with units from other manufacturers.
• Includes 7 o-rings. Six o-rings to seal your 3.5” housings and one o-ring to seal your 2” membrane housing.
• Molded from NSF61 certified Buna-N rubber for safe and clean drinking water.
• Manufactured and warrantied by Captain O-Ring LLC. Proudly assembled in the USA.

Get your system back in working order with Captain O-Ring’s replacement PRTHORING7 O-Ring Kit for Express Water RO Systems.

This o-ring kit is compatible with Express Water RO systems that use their 3.5” diameter RO Water Filter Housings with the two o-rings at the top and the single 2” membrane housing. This includes Express models such as
- “Classic Reverse Osmosis” or “RO System” (models RO10M / RO10MBN / RO10D / RO10DBN)
- “Alkaline Mineralization” or “ALK System” (models ROALK10M / ROALK10MBN / ROALK10DBN / ROALK10D)
- “Ultraviolet” or “UV System” (models ROUV10M / ROUV10MBN / ROUV10DBN / ROUV10D)
- “ALK & UV System” (models ROALKUV10M / ROALKUV10MBN / ROALKUV10DBN / ROALKUV10D)
- Deionization or “ION System” (models RODI10M / RODI10MBN / RODI10DBN / RODI10D)
And other models that specifically call for o-ring kit part numbers PRTHORING7 or PRTHORING6

The PRTHORING7 includes seven (7) o-rings. This includes two o-rings for each of your three 3.5” housings (the larger o-ring at the base of the threads and the smaller o-ring at the top of the threads) as well as the smallest o-ring in the kit for the 2” membrane housing cap. See photos to view where each o-ring in the kit goes on your compatible RO system.

The 7-piece PRTHORING7 o-ring kit replaced the discontinued PRTHORING6 kit that previously included 6 o-rings.

Molded from NSF61 certified Buna-N rubber for safe and clean drinking water.

Manufactured and warrantied by Captain O-Ring LLC. Proudly assembled in the USA.