Pentair 161112 | GRO-575B 5-Stage Reverse Osmosis Filtration System | Lead, PFAS
Pentair 161112 | GRO-575B 5-Stage Reverse Osmosis Filtration System | Lead, PFAS is backordered and will ship as soon as it is back in stock.
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Pentair 161112 | GRO-575B 5-Stage Reverse Osmosis Filtration System...
The Pentair 161112 (GRO-575B) is a five-stage reverse osmosis filtration system engineered to reduce up to 99.7% of Total PFAS and Lead, delivering high-quality drinking water for homes.
Key Specifications:
| Application | Residential drinking water filtration |
| Capacity | 675 gallons; 1-18 months filter life |
| Contaminants Filtered | Chlorine Taste & Odor, Atrazine, Lead, Arsenic, Barium, Cadmium, Chromium, Copper, Fluoride, Radium, Selenium, Turbidity, TDS, Total PFAS, Cysts |
| Operating Conditions | 40-100 psi; 40-100°F |
| Included Filter Cartridges | F1GC-RC, FDF1-RC, F2B2-RC2 (Twin Pack), GRO75-RC |
Why Choose the Pentair 161112 (GRO-575B)?
- Advanced PFAS Reduction: Certified to reduce up to 99.7% of Total PFAS, offering enhanced protection against emerging contaminants.
- Effective Lead Removal: Reduces up to 99.7% of Lead, ensuring safer drinking water for the entire household.
- Easy Maintenance: Effortless click-in cartridge change-outs with color-coded shapes simplify filter replacement and maintenance.
- High Efficiency Design: High efficiency membrane technology delivers up to 75 gallons per day with integrated check valves for hassle-free servicing.
Comparison Table
| SKU | Model | Contaminants Filtered | Production Rate |
|---|---|---|---|
| 161112 | GRO-575B | Total PFAS, Lead, Atrazine, TDS, Cysts | 75 GPD |
| 161110 | GRO-350B | Lead, Nitrate/Nitrite, TDS, Cysts | 50 GPD |
| 161111 | GRO-475B | Lead, Lindane, Atrazine, TDS, Cyst | 75 GPD |
| 161114 | GRO-475BP | Lead, Lindane, Atrazine, TDS, Cyst | 75 GPD (Booster Pump) |
FAQ
Q: How Often Should the Pentair 161112 (GRO-575B) Filter Be Replaced?
A: Pre/post filters should be replaced every year, while the RO membrane should be replaced every 18 months, or after filtering 675 gallons, depending on water usage and quality.
Q: What Contaminants Does the Filter Remove?
A: This system reduces Chlorine Taste & Odor, Atrazine, Lead, Arsenic, Barium, Cadmium, Chromium, Copper, Fluoride, Radium, Selenium, Turbidity, TDS, Total PFAS, and Cysts such as Cryptosporidium and Giardia.
Q: What Certifications Does the Pentair 161112 (GRO-575B) Filter Have?
A: This system is tested and certified by NSF International against NSF/ANSI Standards 42, 53, and 58, and CSA Standard B483.1, and is also certified by IAPMO R&T for Total PFAS reduction.
Q: What Are the Operating Conditions for the Filter?
A: The system operates within a feed pressure range of 40-100 psi and a temperature range of 40-100°F.
Q: Is This a Genuine Filter? Is BottleFillingStations.com an Authorized Pentair Distributor?
A: Yes, this is a genuine Pentair 161112 (GRO-575B) filter so it will perform per manufacturer's standards and come included with a warranty. BottleFillingStations.com is an authorized Pentair distributor.
NOTICE: Do not use with water that is unsafe or of unknown quality without adequate disinfection either before or after the system.
"Hydrate Everyone, Everywhere!" BottleFillingStations.com | Contact us
The Pentair 161112 GRO-575B is a 5-stage reverse osmosis system that connects to your cold water supply line, a dedicated drinking water faucet with air gap, a drain connection, and its own 4.4-gallon storage tank. It reduces chlorine, lead, PFAS, arsenic, TDS, and more, and produces up to 75 gallons per day.
Before You Begin
- Tools needed: a hand or electric drill (cordless preferred), two adjustable wrenches, slotted and Phillips screwdrivers, a file, safety glasses, drill bits (1/8", 3/16", 1/4", 3/8"), a tube cutter or utility knife, a pencil, a towel, and a bucket. If your sink doesn't have a hole for a separate faucet, add a center punch, a 3/4" hole saw or drill bit, and a safety mask.
- Safety first: Install on the cold water line only. Your water supply should be within 40–100 psi, 40–100°F, under 2000 ppm TDS, under 10 gpg hardness, and pH 3–11. Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection.
- Cartridges: The GRO-575B uses FDF1-RC, GRO75-RC, the F2B2-RC2 cartridge set (F2B1-RC + F2B2-RC), and F1GC-RC, which come pre-installed in the correct sequence.
Step-by-Step Installation Guide
- Turn off the cold water supply line (install a shut-off valve first if needed), drain the line, then install the feed adapter valve onto the supply valve and connect the riser to it.
- Choose a faucet location and drill a 3/4" hole if needed. Mount the faucet with its drain tubing, chrome plate, and locking nut — making sure the 1/4" red RO drain line (with its flow restrictor still attached) is securely connected to the system manifold before attaching it to the faucet.
- Mount the system vertically in a solid location under the sink, then connect the blue outlet tubing from the faucet to the system.
- Connect the storage tank to the system: wrap the tank threads with plumber's tape, thread on the tank valve, then run blue tubing from the tank valve to the system's quick-connect fitting. Mount the system on the wall and connect the remaining blue tubing from the system to the water supply adapter.
- Connect the 1/4" drain line from the system to an appropriate drain connection per local plumbing codes.
- Close the tank valve, turn on the cold water supply, and lift the faucet handle to lock it open, letting it drip for 30 minutes, then fully open the supply and let it drip for 12 more hours. Close the faucet, open the tank valve to fill (about 3 hours), then flush the post-filter by opening the faucet for 4–5 minutes and letting the tank refill — repeat this fill-and-flush cycle 4 times, checking for leaks throughout.
Looking for Pentair GRO-575B RO system? Shop here.
