SpringWell Whole House Well Water Filter System

Short answer: the SpringWell whole house well water filter is an air-injection tank for iron, hydrogen sulfide, and manganese. It is not the CF1 city-water carbon system. The product page, read November 10, 2026, lists up to 7 ppm iron, 8 ppm hydrogen sulfide, and 1 ppm manganese. It was in stock. SpringWell holds the order until a water test is approved. The link is direct. We do not earn a commission on it.

Published November 10, 2026. Specs are from that SpringWell page, from CDC's well-testing guidelines (page dated July 1, 2024, re-read the same day), from iSpring's Amazon listing for the WGB32BM, and from Waterdrop's G3P600 FAQ. The well filter and the WGB32BM were in stock. The G3P600 variant was available. We have not tested a well, and we don't run a lab.

This is one stage, not a whole purification system

A private well is not regulated like a public water system. CDC's page says to test at least once a year for total coliform bacteria, nitrates, total dissolved solids, and pH, at a state-certified lab, and to ask the local health department what else is common nearby. If the result shows harmful germs or chemicals, CDC says to use another source and contact that department. A product page is not that call.

Inside those limits, the equipment splits:

• Iron, sulfur, or manganese at every tap: a whole-house system. This SpringWell tank is one of those, if the numbers fit. The iSpring WGB32BM is the cartridge alternative when iron is at or under 3.0 ppm and manganese is at or under 1.0 ppm.
• Hardness and scale: a softener, which this tank is not. See water softener for hard water.
• Dissolved solids at the kitchen faucet, after pre-treatment: reverse osmosis. The G3P600 is under-sink RO. Waterdrop's FAQ says well water has to be pre-filtered first. It does not stop orange stains in the shower.

The roundup that matches a test result to a category is best water filter for well water. This page stays on the SpringWell well system. RO for well water is the drinking-water stage. Nitrate in well water is a separate claim. This tank's page does not list nitrate.

What the SpringWell page actually lists

The page describes one tank: an air pocket oxidizes dissolved iron, sulfur, and manganese, greensand fusion media catches the particles, and a backwash sends them to a drain. It says the process does not use a chemical you refill. The limits printed next to the stains and the odor:

• Iron: up to 7 ppm
• Hydrogen sulfide: up to 8 ppm
• Manganese: up to 1 ppm

The spec note says not to use it where water is microbiologically unsafe, and that a complete well test is required before SpringWell will say the system fits. On November 10 the page also said the system was in stock and ships free in 3–5 business days, and that well-system orders are held until the water test is approved. If the results show the system is not compatible, SpringWell says it cancels the order and refunds it. The note under that policy says water tests are non-refundable.

Two sizes are on the spec table:

• WS1: 1–4 bathrooms, 12 GPM service flow, 10-inch by 54-inch tank (64 inches with the head), 1-inch connection, 25–80 psi, 36–120 F, pH 6.5–10
• WS4: 4 or more bathrooms, 20 GPM, 13-inch by 54-inch tank (64 inches with the head), same pressure, temperature, pH, and connection

The line at the top of the page that says "up to 20 GPM" is the WS4 number, not the WS1. What's included is the tank, an electronic head, fittings, a drain line, and a power supply. It needs a drain for the backwash and power for the head.

Warranty text on the same URL

Lower on that page, SpringWell prints warranty blocks that are not the spec table. One block is a chlorine and chloramine guarantee for SpringWell's carbon. Another describes well-water conditions for media that iron, manganese, or hydrogen sulfide would foul, and it recommends pre-treatment if those are present. A salt-free softener warranty is on the page as well.

Those blocks disagree with a filter whose job is iron, sulfur, and manganese. The shopping limits are the 7 ppm, 8 ppm, and 1 ppm lines in the spec section, plus the note not to use the system on microbiologically unsafe water. If you need the warranty in writing for this tank, ask SpringWell which block applies before you rely on the carbon or salt-free language. We are not choosing a winner between the blocks.

The optional UV add-on is not the iron filter

The same page lists an optional UV system and says it removes 99.9% of waterborne pathogens, bacteria, and viruses. That sentence is SpringWell's. We did not find an NSF or WQA certificate for that add-on on the page, and we are not linking a separate UV product. The spec note still says not to use the iron filter where water is microbiologically unsafe.

If a lab report shows coliform bacteria, CDC's instruction is to use another drinking-water source and contact the health department. A UV checkbox is not a substitute for that call. UV also does not remove nitrate or dissolved solids. Our bacteria and virus filter page is not a UV buyer's guide, and this page is not either.

When the iSpring cartridge is the closer match

The WGB32BM listing (ASIN B01FI3BLYM) was in stock on November 10, 2026, with three left. iSpring's bullets say:

• Third stage reduces iron to a maximum of 3.0 ppm and manganese to a maximum of 1.0 ppm. One line lists that iron cartridge at 50,000 gallons at 3.0 ppm iron
• Sediment and carbon cartridges are listed at 100,000 gallons. iSpring says those two are tested by a third party to meet NSF/ANSI standards. The listing does not name the standard number, and it does not say the iron stage is NSF certified
• 1-inch inlet and outlet, flow up to 15 GPM
• It does not reduce TDS

There is no hydrogen sulfide number. A rotten-egg smell is outside what this listing claims. Above 3.0 ppm iron, do not stretch the bullet to match SpringWell's 7 ppm line. The longer iron decision is how to remove iron from well water.

Kitchen RO comes after this, if you still need it

The G3P600 is not a substitute for the tank above. It is a 600 GPD under-sink RO. The FAQ, read November 10, 2026, says well water has to be pre-filtered first, and it names NSF/ANSI 58 for TDS reduction. It needs an outlet and a drain. It treats the faucet it is plumbed to. Home reverse osmosis is the city-water version of that choice. Product data listed the G3P600 variant at $539 and marked it available.

City water that smells like chlorine is the CF series, not this tank. Start with the CF1 review.

Frequently asked questions

Is the SpringWell whole house well water filter the same as the CF1?

No. The CF1 is a city-water carbon tank. This system is the air-injection well filter for iron, hydrogen sulfide, and manganese.

What iron level does SpringWell list?

Up to 7 ppm iron, 8 ppm hydrogen sulfide, and 1 ppm manganese, on the page we read November 10, 2026. The order is held until a water test is approved. Do not use it where water is microbiologically unsafe.

Is 20 GPM every size?

No. The WS4 spec is 20 GPM for 4 or more bathrooms. The WS1 spec is 12 GPM for 1 to 4 bathrooms.

Does this replace kitchen reverse osmosis?

No. It does not lower TDS. RO at the kitchen faucet is a later step, after pre-treatment, and only for the faucet it is connected to.

What if the test shows coliform bacteria?

CDC says to use another source and contact the health department. SpringWell's own spec note says not to use this filter on microbiologically unsafe water.

Related guides

• Best water filter for well water
• SpringWell CF1 review, the city-water tank
• How to remove iron from well water
• Reverse osmosis for well water
• Well water testing