Iron OUT Rust Stain Remover Powder White 28 oz bottle for bathroom and laundry rust removal
IRON OUT Rust Stain Remover Powder, 1 lb 12 oz Bottle
Hero image 0 of IRON OUT Rust Stain Remover Powder, 1 lb 12 oz Bottle, 0 of 8
100+ bought since yesterday
Visit the Iron OUT Store

IRON OUT Rust Stain Remover Powder, 1 lb 12 oz Bottle

1,002 ratings
IRON OUT Rust Stain Remover Powder, 1 lb 12 oz BottleIRON OUT Rust Stain Remover Powder 1 lb 12 oz Bottle3 pack IRON OUT Rust Stain Remover Powder 1 lb 12 oz Bottle2 pack IRON OUT Rust Stain Remover Powder 1 lb 12 oz Bottle
Pack SizeSingle

Key item features

  • One container of Iron OUT Powder Rust Stain Remover, 28 oz
  • Goodbye Rust: Remove rust stains from surfaces inside and outside the home with a heavy-duty rust removal product trusted for over 60 years. The unique cleaner removes rust and iron and easily rinses away.
  • Super Strength: The heavy-duty stain remover is specifically formulated to quickly and easily rinse away the toughest rust stains without scrubbing. It contains no phosphates and is septic-friendly.
  • Multi-Purpose: Rust stains happen for many reasons, especially with high iron and hard water. Use the rust remover for toilets, tubs, showers, sinks, concrete, appliances, water softeners, white laundry, and more.
  • Easy To Use: Typical cleaning sprays and gels, bleaches, and soaps aren’t cut out for rust removal. Utilize our special solution as needed to keep your items and surfaces looking clean and new. Please refer to package instructions for best results.

Specs

Stain remover type, Laundry Stain RemoverCleanser form, PowdersRecommended surface, Multi-SurfaceScent, UnscentedBrand, Iron OUTSize, 28 oz

About this item

Product details

Say goodbye to scrubbing rust stains with no results, and say hello to easy rust removal with Iron OUT Rust Stain Remover Powder. The rust remover is a quick and easy way to remove the toughest stains from indoor and outdoor surfaces. Trusted for over 60 years, the heavy-duty rust remover easily rinses away iron and rust staining without the need for scrubbing. This multi-purpose cleaning powder can be used on many different types of surfaces in and around the home, kitchen, bathroom, and more. Use it on toilet bowls, toilet tanks, showers, sinks, tubs, dishwashers, washers, and more. It can also whiten white clothes and provide cleaning maintenance for water softeners. You can turn to the tough-acting formula to clean a water softener with iron buildup to help maintain the machine’s performance and extend its life. The unique solution changes rust and iron into a clear, soluble state that easily rinses away without scrubbing to save you time while renewing your property. Please read the entire label for instructions before using, and always pre-test in an inconspicuous area. This stain remover can be used on various surfaces.
  • One container of Iron OUT Powder Rust Stain Remover, 28 oz
  • Goodbye Rust: Remove rust stains from surfaces inside and outside the home with a heavy-duty rust removal product trusted for over 60 years. The unique cleaner removes rust and iron and easily rinses away.
  • Super Strength: The heavy-duty stain remover is specifically formulated to quickly and easily rinse away the toughest rust stains without scrubbing. It contains no phosphates and is septic-friendly.
  • Multi-Purpose: Rust stains happen for many reasons, especially with high iron and hard water. Use the rust remover for toilets, tubs, showers, sinks, concrete, appliances, water softeners, white laundry, and more.
  • Easy To Use: Typical cleaning sprays and gels, bleaches, and soaps aren’t cut out for rust removal. Utilize our special solution as needed to keep your items and surfaces looking clean and new. Please refer to package instructions for best results.
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.  

Specifications

Stain remover type

Laundry Stain Remover

Cleanser form

Powders

Recommended surface

Multi-Surface

Scent

Unscented

Directions

Instructions

Always pre-test in an inconspicuous area. For stubborn stains, increase dosage and/or contact time. Bathtubs, Sinks, Tile Rust Stain Removal Wet area to be cleaned. Apply powder to damp sponge or cloth. Rub lightly until stains are gone. Rinse with ambient water. Note: Not recommended for older, worn or chipped porcelain cast iron fixtures. Toilet Bowl & Water Tank Rust Stain Removal Remove cleaners or deodorant from bowl or tank. Flush. Bowl Add 1/2 cup to water in bowl. Scrub stained area with brush. Let stand until stains are gone. Flush. Tank Raise water level above stain line if possible. Add 1/2 cup. Let stand overnight or until stains are gone. Water Softener Rust Stain Removal All softeners on iron-bearing water require Iron OUT as preventative maintenance and to eliminate iron buildup. First Application Dissolve 1 cup in 1/2 gal. cold water. Pour directly into brine well (for softeners with no brine well, pour directly into salt tank when salt level is low). Manually regenerate softener. Repeat for heavily fouled unit. Regular Use Add 1/4 cup per 40 lbs. of salt. Layer for continuous treatment. Cabinet Models USE FOR PERIODIC CLEANING ONLY. Follow FIRST APPLICATION instructions above. NOTE: If taste or odor is detected in tap water, manually regenerate softener, then run cold water until odor is gone. White Laundry & Fabrics/Laundry With Color Or Embroidery Rust Stain Removal NOTE: Do not use with peroxide, bleach, bleach-detergents, oxi-stain removers or oxi-detergents. Whites Add 1/2 cup to warm water as washer is filling (for front loading machines add to the detergent drawer). Add clothes and let soak for 5 minutes (if possible, with soak cycle or by stopping machine). Add detergent and resume wash/rinse cycle. Dry as usual. Colors Test all colors before using. Use only on colorfast dyes. Note: Wash each item separately using the white clothes instructions. Caution: Product may irreparably damage colors and embroidered logos. Dishes, Glass, Plasticware Rust Stain Removal Dissolve 1/3 cup in 1 gal. of warm water. Soak articles 5 min., or until stains are gone. Rinse thoroughly. Repeat as needed. Dishwasher / Washing Machine Rust Stain Removal Add 1/2 cup to EMPTY machine. Run machine through normal cycle using water only. Repeat as needed. Note: Do not open machine mid-cycle. Exterior Surfaces Rust Stain Removal Mix 1 cup into 1 gal. warm water. Wet surface with clear water. Apply with brush or sponge. Keep saturated until stains are gone. Rinse. Note: Avoid contact with vegetation. Precautions And Safety Do not mix with other chemicals. Use only with adequate ventilation. Avoid breathing in vapors after mixed with water. A person with respiratory problems or sulfite sensitivity should not use this product as vapors may impair the ability to breathe. Rubber gloves are recommended when using this product. Avoid contact with eyes and skin. Do not ingest product. Keep out of reach of children.

Safe Handling Instructions

CAUTION: EYE & SKIN IRRITANT. HARMFUL IF SWALLOWED. VAPOR HARMFUL. KEEP OUT OF REACH OF CHILDREN & PETS. Contains Sodium Hydrosulfite and Sodium Metabisulfite. Avoid contact with eyes, skin and mucous membranes. Do not take internally. Use with adequate ventilation. Avoid breathing dust and vapors, especially after mixing with water. Wear rubber gloves when using this product. Mix in adequate open container to avoid spills or bursting. Do not mix with any other household cleaners or chemicals as fumes may be harmful if inhaled. Persons with respiratory problems (i. e. asthma) or sulfite sensitivity should not use this product since the vapors may result in breathing difficulty. FIRST AID: IF IN EYES, flush with water for 15 minutes and get immediate medical attention. IF ON SKIN OR CLOTHING, flush thoroughly with water. If irritation persists, get medical attention. IF INGESTED, do not induce vomiting. Call a poison control center (1-800-222-1222) or doctor immediately for treatment advice.

Warranty

Warranty information

Performance Guaranteed: If not satisfied with product performance mail register receipt along with UPC to Summit Brands for a full refund.

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Ingredients

Warnings

Refine your search

Customer ratings & reviews

4.6 out of 5 stars
stars
1,002 ratings374 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars80% (798)
  2. 4 stars10% (100)
  3. 3 stars3% (31)
  4. 2 stars2% (18)
  5. 1 star5% (55)

Reviews summary

Pros

  • : Requires minimal effort to use.
  • : Removes rust and hard water stains quickly and easily.
  • : Removes tough stains and dinginess from clothes.
  • : Removes hard water and rust stains from toilet bowls and tanks.
  • : Removes tough stains with ease.

Cons

  • : The product emits an odor that requires ventilation.
Generated by AI
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 374 reviews

Sep 13, 2026
Reviewer name: Walmart customer
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

works well

works extremely well to get out rust stains in the bath or shower, toilet areas. wet your surface and the powder sticks to the surface to start cleaning

Helpful?35AYYV9R9GY817757441
reply from "Your Summit Expert"

Thank you for your review! We're thrilled to hear that Iron Out Powder works extremely well for removing rust stains in your bath, shower, and toilet areas. We love that you highlighted how the powder sticks to wet surfaces, helping it stay where it's needed to tackle tough stains effectively. Thank you for choosing Iron Out and for sharing your experience!

Apr 4, 2026
Reviewer name: beth
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

I have hard well water. Stains in my toilet, sink, and shower. This is the only product that removes the rust calcifications. No other product works for me! Sprinkle on damp area, let sit, scrub and rinse. I do advise for anyone with breathing issues, wear a mask as this is powder. For toilet use, turn off water supply, flush toilet then sprinkle into toilet.Close the lid! Return 15 minutes later, scrub, turn water back on, close lid and wait for tank to fill. Then flush and stains are gone!

Helpful?35AYYV9R9GY817757441
reply from "Your Summit Expert"

Thank you for sharing your experience! We’re so glad to hear that Iron OUT® Powder is the only product that works for removing tough rust and mineral stains caused by hard well water. We really appreciate you taking the time to share how you use it and for offering helpful tips for others dealing with similar issues. Your feedback means a lot to us—thank you for choosing Iron OUT!

Oct 11, 2026
Reviewer name: Walt
Item details
Multipack quantity: 1
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

On time, good condition, right price!!

This item was substituted but turned out to be an blessing. I didn't realize that the original was in liquid form which wasn't available so Walmart sent smaller containers of the powdered form which is what I wanted.

Helpful?35AYYV9R9GY817757441
reply from "Your Summit Expert"

Thank you for your review! We’re thrilled Iron Out made rust removal easy and effective for you. Your feedback means a lot!

Current price is $18.0364.4 ¢/oz
Price when purchased online
  • Free shipping
  • Free Holiday returns until Jan 31

How do you want your item?

How do you want your item?
Ships to
Arrives by Sat, Nov 7
.
Order within 13 hr 44 min
|
Sold and shipped by SIM Supply Inc
4.353907569476432 out of 5 stars
4.4 stars out of 5, based on 6513 seller reviews(4.4)
Extended holiday returns
Free Holiday returns until Jan 31

More seller options (9)

Starting from $18.03