API Marine Saltwater Master Test Kit Tests High Range pH, Ammonia, Nitrite and Nitrate by API

Good kit with consistent test results. Not quit all inclusive but covers the 4 important tests.

Fast shipping and beyond amazing prices. By far all the stores I have checked wanted double the amount they have theirs listed for.

great price for this product. I use this weekly.

Exactly as described, exactly what we needed...thank you.

Test kit with a price that can't be beat. Thanks.

this kit saved me a lot of time and money.

This kit works well. I've had mine for about 3 years and love it.

This is one the best test kit i've owned, easy to read cards, really good tester for the money $

You cannot have a saltwater set up and not have the proper testing equipment for water stability. I use this item almost daily on the cycling process.

First off, kudos to Petmountain for having the best price on the API kits. I am very pleased with the test kit. It is as accurate as my friends higher end test kit.. It is user friendly and it didn't burn a hole in my pocket to get it. Thanks

If you're using the "quick-dip" type testing strips, stop. They aren't very accurate. Sure, they are super easy to use and give you results in seconds, but they may be wrong. This test kit uses liquid and test tubes. It does take longer and is more labor-intensive, but you can rely on the results. Plus, this kit contains enough for hundreds of tests. The only con I can think of is sometimes it's a bit difficult to match the color of the water to the result color cards. But this does not happen often.

This is a very good starter test kit by API. It is simple to use and interpret. I wish it included a Phosphate test though.

I have received this test kit and like it and would buy this test kit again. There is one draw back some of the colors are very close and hard to tell which one it is at.

IT'S GREAT AND EASY TO USE. READINGS ARE JUST AS ACCURATE AS OTHER MORE EXPENSIVE PRODUCTS.

I bought this test kit as a substitute for the expensive Salifert tests. I have checked the Results of these AP kits against Salifert kits at the LFS and they are right there with them. Some kits can be hard to read (pH), but most are very good. Not quite as good as Salifert, but definitely acceptable for half the money, a great deal.

I find this product is great.This is my second purchase.I give it a thumb up.

Very good product, works fast and very accelerate results!

This Product is great. Easy to perform test, results in under 5 minutes. Would buy again.

This test kit is nothing short of amazing! It is accurate and easy to read and understand. It makes you feel like you are a professional chemist! I would reccomend this product to anyone!

This is an absolutely amazing product! I have been using it for years! It is clear and concise! This kit is easy to understand, and it gives you accurate results every time. I would recommend this product to anyone anytime!