John Guest Black 100 ft/roll 3/8 Polyethylene Tube Tubing Drinking Water RO Reverse Osmosis DI Aquarium Pipe LLDPE by John Guest Oil Absorbent 🔍 Not sure which you

🔍 Not sure which you have

The included post filter uses 3/8 inch quick-connect fittings standard on newer Microline units

Apply heat evenly with a propane torch and feed lead-free solder around the joint until a complete bead forms at the connection

Precision pressure regulation at 60 PSI to protect inline filters

John Guest Black 100 ft/roll 3/8 Polyethylene Tube Tubing Drinking Water RO Reverse Osmosis DI Aquarium Pipe LLDPE by John Guest Oil Absorbent 🔍 Not sure which youProfessional Grade Tubing John Guest Black 3 8" Polyethylene Tubing 100 feet of LLDPE tubing engineered for reverse osmosis, DI systems, and aquarium applications where light blocking matters 100 ft Roll 3 8" OD LLDPE John Guest WHY IT WORKS Black tubing blocks light to prevent algae growth in long runs Algae Prevention Opaque black LLDPE blocks UV and visible light, eliminating photosynthesis that causes green growth in clear tubing exposed to