High Pressure Rain Filtered Shower Head An 8" hexagonal rain shower head with a built-in filtration cartridge infused with vitamin C, E, and A. Reduces chlorine, chloramine, rust, and sediment at the point of use. Two flow restrictor options included (1.8 GPM and 2.5 GPM) so you can set your preferred flow rate. Works With Hard Water & Well Water Helps reduce the contaminants common in municipal and well water that can leave skin feeling dry and hair looking dull. A practical single-unit solution — no separate inline filter housing needed. Easy Installation, No Tools Required Threads onto any standard ½" shower arm. Hand-tighten onto a dry fixture and you're done. Universal fit. What's Included 8" hexagonal rain shower head with filter cartridge installed 1.8 GPM flow restrictor 2.5 GPM flow restrictor Replacement Schedule Replace the filter cartridge every 4–6 months depending on water quality and usage. Allow water to run for 5–10 minutes on first use to flush carbon dust.