3/4" S x3/8" FIPT Red Bushing

When you need to step down from a 3/4" line to a 3/8" threaded port, this Harrington Process Solutions reducing bushing handles the transition cleanly inside a single fitting. It pairs a 3/4" slip socket with a 3/8" FIPT (female iron pipe thread) outlet, letting you solvent-weld the larger side onto Schedule pipe while threading a smaller device, gauge, sensor, or drain line into the tapped end. Concentrating the size change into one compact part keeps assemblies tidy and cuts down the number of separate joints in a run, which matters a great deal inside crowded equipment enclosures.

Built for water-treatment plumbing

Molded from heavy-wall Schedule 80 PVC, this bushing carries a thicker cross-section than standard SCH40 fittings, giving it added pressure headroom and extra durability around water softeners, filtration skids, and brine or backwash piping. The corrosion resistance of PVC means it shrugs off the minerals, chlorine, and salt brine that are common throughout treatment systems, conditions that would eventually pit, scale, or seize a brass equivalent. Because plastic does not rust or corrode internally, the smooth bore stays clear and the threads remain easy to break loose during future service.

• Connection style: 3/4" slip socket x 3/8" FIPT
• Fitting type: reducing bushing
• Material: Schedule 80 PVC for extra wall thickness
• Reduces a 3/4" run down to a 3/8" threaded outlet
• Ideal for adapting gauges, sensors, and small drain lines
• Lightweight at roughly 0.01 lb each

Installation is straightforward. Prime and solvent-weld the slip end to your 3/4" pipe after cutting it square and deburring the edge, then thread the 3/8" component into the FIPT port using PTFE tape or an approved thread sealant. Hand-tighten and add only a gentle final turn, since plastic threads can strain or crack under excessive torque. Dry-fitting the assembly first helps confirm the smaller outlet lands exactly where you want it before any cement is applied. For residential and light-commercial water treatment equipment that demands a reliable, corrosion-proof reduction in a single fitting, this Harrington bushing is a dependable, no-fuss choice.

Schedule 40 PVC fittings remain a favorite among professional installers and DIY homeowners because they assemble quickly, cost little, and last for decades in cold-water service. Unlike threaded metal, a solvent-welded PVC joint cannot rust shut or develop the slow seeping corrosion that eventually plagues galvanized assemblies.