Description Chemical Injector – PA The PA Chemical Injector is a brass and stainless fixed injector made to withstand caustic chemicals. The units all have 3/8″ MPT inlets and outlets. They come in 3 models based on GPM, with a repair kit sold separately. IJ-PAF1.8 – 2-3 GPM IJ-PAF2.1 – 3-5 GPM IJ-PAF2.3 – 5-8 GPM IJ-PARK – Repair Kit
