Kinetico 10803 Drain Flow Restrictor – Genuine Replacement for K2 & A200 RO Systems Product Overview

Optimise the performance of your drinking water system with the Genuine Kinetico 10803 Drain Flow Restrictor. This precision-engineered component is designed exclusively for the Kinetico K2 and A200 Reverse Osmosis (RO) systems.

The flow restrictor is responsible for maintaining the critical balance of pressure against the RO membrane. By controlling the amount of water sent to the drain, it forces the "good" water through the membrane and into your storage tank. If you are replacing your RO membrane, Kinetico experts highly recommend replacing the 10803 restrictor at the same time to ensure your new membrane isn't damaged by improper pressure levels.

Symptoms: Why You Need to Replace Your Drain Flow Restrictor

Because this part deals with the concentrate (waste) water, it is highly susceptible to "scaling" or clogging over time. You likely need the PN 10803 if you notice:

• The "Never-Ending" Drain Noise: If you can hear water trickling down your drain long after the storage tank should be full, the restrictor may be failing to hold the necessary backpressure, preventing the system from "shutting off."

• Poor Water Quality (High TDS): If your TDS (Total Dissolved Solids) levels are rising, it might not just be the membrane. A clogged restrictor prevents the "flush" action, causing minerals to build up rapidly on the membrane surface.

• Low Water Production: If it takes forever to fill a glass of water, a partially blocked restrictor could be causing an imbalance in the system’s hydraulics, leading to a drop in "product water" output.

• Membrane Premature Failure: If you find yourself replacing expensive RO membranes every few months, a faulty or scaled-up flow restrictor is almost certainly the culprit.

• Visible Scale Build-up: Upon inspection, if the small orifice of the restrictor shows white calcium crust or debris, it must be replaced to prevent system back-pressure issues.

Key Benefits

• System Specific: Calibrated specifically for the flow rates of the Kinetico A200 and K2 models.

• Protects Your Membrane: Ensures the correct "Waste-to-Pure" water ratio, extending the life of your expensive filtration stages.

• Easy Inline Installation: Designed for quick replacement within the drain line assembly.

• Genuine Kinetico Quality: Avoid generic restrictors that can lead to high water bills or poor filtration.

Technical Specifications

• Part Number: 10803

• Compatibility: Kinetico K2 RO, Kinetico A200 RO (Not for use with other RO brands).

• Function: Fixed-orifice flow control.

• Connection: Standard inline fitment for Kinetico drain tubing.

Expert Tip for Kinetico Owners

The 10803 restrictor is often the "forgotten" part of an RO service. If you are already opening up your system to change the pre-filter and carbon post-filter, swapping this restrictor is a 2-minute job that can save you gallons of wasted water every month.

Installation Manual K2 & A200