Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

TSP Substitute Phosphate-Free Exterior Cleaner 64 -oz Powder All-Purpose Cleaner

Ratings & Reviews for M-1 TSP Substitute Phosphate-Free Exterior Cleaner 64 -oz Powder All-Purpose Cleaner

4.5
138
Review
 4.5 out of 5
138 Reviews


87% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise this cleaner for exceptional surface preparation before painting, with most reporting excellent results removing grease, smoke, grime, and oxidation from walls, woodwork, decks, and filters. Many note paint adheres better and finishes look superior after using it. Reviewers highlight its powerful cleaning ability on diverse surfaces, requiring only small diluted amounts with minimal effort and no strong odor. A few customers mention preferring the original formula and note that gloves are necessary to prevent skin irritation. Overall, most customers strongly recommend it and plan to repurchase.

Customer review summary generated by AI, including incentivized reviews.
138 Customer Reviews

Easy to use

Would Recommend

Works as described

January 17, 2026
Verified Purchaser
Was this Review Helpful ?

package large and goes a long way

Would Recommend

Cleans well for prep for painting

January 15, 2026
Verified Purchaser
Was this Review Helpful ?

Works Great

Would Recommend

At normal mixture, took the smoke stains off the doors easily.

Was this Review Helpful ?

Amazing TSP

Would Recommend

My dad always used Tri Sodium Phosphate to clean windows and I learned that using this mild detergent on other surfaces really gets them clean. When the water starts to turn dirty all I had to do is make a new batch. It only takes about 1 tablespoon to a gallon of warm water to clean these tough dirty surfaces.

Was this Review Helpful ?

NOT the old TSP but it worked...

Would Recommend

Worked to remove old wallpaper paste.

December 15, 2025
Verified Purchaser
Was this Review Helpful ?

Excellent Exterior Paint Prep Product

Would Recommend

Effective in removing grime and oxidization, easy of use. and dissolves quickly.

December 15, 2025
Verified Purchaser
Was this Review Helpful ?

Stain recommendation

Would Recommend

I got a great recommendation from the paint section employee for stain and a great degreaser for furniture. It resulted in finishing an armoire for my wife and I owe it all to the paint representative!

Was this Review Helpful ?

Worked well to clean shed doors

Would Recommend

Needed to clean shed doors in preparation for painting. Used as directed and removed a couple years of dirt and grime

Was this Review Helpful ?

Great degreaser for cleaning blinds and oily stuff

Would Recommend

It’s great for cleaning blinds and other hard surfaces.

November 21, 2025
Verified Purchaser
Was this Review Helpful ?

Phosphate Free when you need TSP

Would Not Recommend

TSP are three letters that mean Tri Sodium Phosphate. This product contains Zero phosphate and therefore cannot be of a sufficient pH base necessary for any application requiring Tri Sodium Phosphate. Bought this to ready or prepping existing tiles for placing new tile over them. Useless product whose label is severely misleading.

Was this Review Helpful ?

Use gloves when using TSP

Would Recommend

TSP is a great household cleaner for small or large clean-up

Was this Review Helpful ?

Versatile, effective, inexpensive

Would Recommend

Inexpensive great cleaning product used for various dirty and greasy jobs. I used on inside walls for paint prep and to clean grime on gutters of a 50 year old house. Odorless, easy to adjust strength, long shelf life. I used this product per easy to understand package directions and precautions (wear gloves, don’t let splatter, rinse thoroughly, etc). Walls were appropriately prepped for paint to adhere nicely. Gutters look newer and improved curb appeal. I’m happy with product and would recom...

October 19, 2025
Verified Purchaser
Was this Review Helpful ?