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  • scale inhibitor 1 replacement cartridge | AP341 | compatible with AP43

scale inhibitor 1 replacement cartridge | AP341 | compatible with AP430ss systems


25-Year Warranty
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25-Year Warranty

Covers manufacture defects

COVERAGE HIGHLIGHTS

PARTS

Sensors: thermistors + transducers. Electrical: thermostats and triacs. Brains: control and power boards.

HEAT EXCHANGER

All exchangers are pressure tested to ensure NO LEAKS. Leaks at welded joints due to manufacture defect are covered.

RESOLUTIONS

Our goal is to minimize your hot water downtime. We'll ship a part, or a replacement unit depending on the issue.

Shipping

Ground shipping within the continental US is covered.

$24.99

Replacement polyphosphate cartridge for your scale inhibitor system. Continues protecting your water heater, pipes, and appliances from hard water damage.

what’s the right heater for me?

Overview

This replacement cartridge keeps your scale inhibitor system working effectively. The polyphosphate beads inside gradually dissolve to prevent calcium and magnesium from building up on your water heater's heating elements, pipes, and appliances.

Replace your cartridge every 6-12 months depending on your water hardness. As the polyphosphate beads deplete, protection diminishes - regular replacement ensures continuous protection for your appliances.

Simple replacement: unscrew the old cartridge, thread in the new one. Takes less than 5 minutes.

Compatible with: Optimal Scale Inhibitor systems with T-fitting, 3M Aqua-Pure AP430SS, and other standard scale inhibitor housings.

Product Details

Dimensions: 26 x 7 cm
Weight: 0.50 lbs
Media: Food-grade polyphosphate beads
Housing: High-pressure reinforced PP plastic, BPA-free
Function: Prevents calcium and lime buildup on heating elements, pipes, and appliances
Standards: Meets NSF/ANSI standards for material safety and structural integrity
Compatibility: Standard ¾" scale inhibitor housings (AP430SS and equivalent systems)

Note: This is the replacement cartridge only. The ¾" T-fitting adapter is NOT included - this cartridge threads into your existing scale inhibitor housing. If you need the complete system with T-fitting, see our Scale Inhibitor with T-Fitting.

Install + Care + Warranty

Product Packaging

Delivery Info