Upgrade Your Pump & Water System with Reliable Barb-to-BSP Connectors Whether you're replacing a cracked outlet fitting on a pond pump, plumbing an aquarium filtration system, or connecting flexible tubing to a fountain pump, a mismatched or ill-fitting connector can take your entire water feature offline. These 3/4" Barb x G1/2" BSP Male Hose Adapters are engineered to deliver a tight, dependable seal every time. Crafted from commercial-grade polypropylene (PP), each adapter measures 46mm (1.8") in total length, with a 19mm (0.75") barbed end for secure hose grip and a G1/2" BSP male thread (20mm / 0.8" OD) for easy installation into most submersible pump outlets. The multi-ridge barb design bites into the hose inner wall to prevent slipping or blowouts under normal pump flow pressure. These fittings are non-toxic, fish-safe, and corrosion-proof in freshwater environments — making them suitable for year-round outdoor pond installations, aquarium plumbing, hydroponic systems, and decorative water features. The PP material will not rust, swell, or degrade with prolonged water contact or prolonged exposure in pond and aquarium water environments Please note: these adapters use G1/2" BSP parallel thread — the international standard used by most submersible pump manufacturers worldwide. G thread is NOT the same as NPT tapered thread used in US household plumbing. To confirm compatibility, measure your pump outlet thread OD: 20mm = G1/2" BSP. Message us with your pump model if unsure — we respond within one business day. This pack includes 3 connectors, so you're always prepared for multi-pump setups or future replacements. No special tools required — simply push the hose onto the barb end and hand-tighten the BSP thread into your pump outlet port for a fast, tool-free installation.