Inline DI Deionization Filter (For Ultra-Pure Water), 1/4" & 3/8" OD Tubing Connections (SKU# DI-QC)

Description DI-QC Inline Deionization (DI) Filter – Ultra-Pure Water Quality Purpose:Engineered for TDS removal and designed to deliver ultra-pure, zero-TDS water, this DI inline filter is perfect for applications demanding the highest water purity. Ideal For Aquariums (Fresh & Saltwater): Ensures a stable, contaminant-free environment for sensitive aquatic life. Reverse Osmosis Systems: Commonly installed after the RO membrane and before the carbon polishing stage to remove the final traces of dissolved solids. Brewing, Hydroponics & Specialty Use: Excellent for breweries, labs, and any application that requires ultra-pure water. Connection Type Standard Inlet/Outlet: 1/4″ Quick-Connect ports Optional fittings available: 90° Elbow Stem Fitting: 1/4″ stem × 1/4″ QC (for tight or angled installations) Step-Up Fitting: 1/4″ stem × 3/8″ OD tubing Free Fittings: We can ship any 2 fittings free of charge with your filter order. If you need fittings, please mention it in the Customer Notes at checkout. Product Features Premium Resin: Packed with DuPont AmberLite MB20 mixed-bed ion exchange resin for superior TDS reduction and consistent ultra-pure output. Max Pressure: 80 PSI Temperature Range: 36–100°F Lifespan: 150 grains (lifespan depends on feed water quality and TDS level) Cold Water Use Only Easy Installation: Quick-Connect design for fast setup with standard tubing. Specifications SKU / Reorder: DI-QC Manufactured For MyAquaFilter by AquaJB Function: Final-stage polishing filter to achieve 0 TDS Media: Ion exchange mixed-bed resin   ��Installation Tips Tubing Size Most RO systems use 1/4″ OD tubing (standard RO size). Some countertop RO systems and specialty setups use 3/8″ OD tubing. Tubing size refers to the outside diameter (OD) of the tube. When Do You Need Elbow Adapters? Select 3/8″ OD Tubing if your system uses larger tubing. We include 2 elbow adapters to connect the inline filter to 3/8″ OD tubing. ✔ No tools required ✔ Push-to-connect installation When Do You Need a T-Fitting? A T-fitting (1/4″ stem x 1/4″ OD Tubing x 1/4″ OD Tubing) is helpful if you are: Adding the inline filter to an existing 1/4″ RO line Want an easier install with a clean branch connection Installing between tubing lines without reworking your layout ✔ Optional accessory ✔ Makes installation easier for some setups Not Sure Which Option to Choose? If unsure, select 3/8″ OD Tubing. The filter comes with 1/4″ connections, and we include two elbow fittings for 3/8″ OD tubing in the package. Message us before ordering—we’re happy to help you pick the right fittings. ▶️ Video Installation Guidance Because RO systems and plumbing layouts can vary, there are multiple valid ways to install an inline filter. If you are unsure about your setup, we recommend: Searching YouTube for “inline RO filter installation” Watching a video that best matches your system type (under-sink RO, countertop RO, post-filter installation, etc.) Visual step-by-step videos can be very helpful and often make installation easier and faster.