Superwater.com offers 100% FREE SHIP w/ COUPONS FedEx and UPS Ground Shipping on every Pentair # EV9105-45 Everpure 155321-43 WS-20BB / Costguard SO-204 Water Softening Filter Cartridge # DEV910545 / EV910545 Everpure Costguard # EV910545 SO-204 Water Softening Filter Cartridge order.

PLEASE NOTE: The older model WS-20BB has ben discontinued is no longer made and has not been made since July 2023. The SO-204 is the Permanent Replacement.

***SPEND OVER $300, USE THE COUPON CODE ( superwater20 ) ON CHECKOUT FOR AN ADDITIONAL $20 OFF YOUR ENTIRE ORDER w/ NO TAX (**Except Florida).

- OR -

***SPEND OVER $500, USE THE COUPON CODE ( superwater50 ) ON CHECKOUT FOR AN ADDITIONAL $50 OFF YOUR ENTIRE ORDER w/ NO TAX (**Except Florida).

WE ARE AN AUTHORIZED PENTAIR EVERPURE COSTGUARD DEALER w/ OVER 30+ YEARS EXPERIENCE. Please call us with any questions you may have.

PLEASE NOTE: Additional Muliple Costgaurd # DEV9105-45 SO-204 cartridge orders are listed and shown in the section above.

Softening filter cartridge, also used with Costguard systems as # DEV9105-45

20" drop-in big bowl cartridge with a 4-1/2" diameter.

Recommendation: The SO-24 # EV910545 should be paired with an appropriate Everpure precoat filter system.

Allows for flow rate up to 2 GPM.
Softening Capacity: 4,500 grains
Flow Rate: 2 GPM

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