why do i need 150 of them?

Well, it's a matter of personal choice. I test frequentl, so I am happy there are 150 of them. The box that I just got doesn't expire until August of 2023, so I know I will have no problem using them by that time. I like to make sure my water softener is working.

Can it test bottled carbonated water?

I am sure it can. I would test the freshly opened bottle first, then let it stand overnight to lose the carbonation then test again to see if there was a difference. The stale water test should be considered definitive. I am a chemist.

It says for testing magnesium, I don't see a magnesium scale? Does it actually test magnesium?

It tests for it, it tests for all the minerals and metals it lists. It does not have individual scales for each one.

Does this work for salt chlorinated pools?

Yes, it will indicate the total hardness (amount of CaCO3)

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Varify Water Hardness Test Kit - Hard Water Test Strips for Well & Home

Varify Water Hardness Test Kit - Hard Water Test Strips for Well & Home

Product ID: 250944336

Details

Brand
VARIFY
Manufacturer
VARIFY
Ph Range
6.5-8.5
Recommended Uses For Product
testing water
Unit Count
100 Count

📊0-25 GPG & 0-425 PPM range

🔒FreshSeal tech for long shelf life

⏱️30-sec rapid results

NZ$33

Duties & taxes included

In stock

Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Test fast, live smart — don’t let hard water catch you off guard!

EFFORTLESS VISUAL GUIDANCE - Oversized, easy-to-read color chart ensures anyone can interpret results without guesswork or delays.
EXTENDED FRESHNESS GUARANTEE - Innovative FreshSeal packaging keeps all 150 strips reliable and ready, even after multiple uses.
COMPREHENSIVE HARDNESS SPECTRUM - Accurately measures water hardness from 0 to 25 GPG (0-425 PPM) for well, home, pool, spa & softener systems.
INSTANT CLARITY ON WATER QUALITY - Get precise calcium & magnesium levels in just 30 seconds with a simple dip-and-read strip.
EMPOWER YOUR HOME GLOBAL IMPACT - Protect your appliances and skin while supporting clean water initiatives worldwide with every test.

The Varify Water Hardness Test Kit offers 150 precision strips that detect calcium and magnesium levels in seconds, covering a broad hardness range (0-25 GPG). Featuring an easy-to-read color chart and FreshSeal technology for extended shelf life, it’s designed for well, home, pool, spa, and water softener systems. Beyond home protection, each purchase supports global clean water efforts, making it a smart, socially conscious choice for water quality monitoring.

Specifications

ASIN	B08D8KFPV8
Best Sellers Rank	#700 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Hardness Testing Equipment
Brand	VARIFY
Brand Name	VARIFY
Customer Reviews	4.4 out of 5 stars 7,204 Reviews
Global Trade Identification Number	00618149116515
Included Components	150 strips
Item Highlight	150 hard water test strips detect calcium & magnesium in seconds, for well, home, pool, spa & water softener systems
Item Weight	2.72 ounces
Manufacturer	VARIFY
Material Type	Plastic
Model Number	Water Hardness Test Kit
Number of Items	150
Number of Packs	3
Part Number	VarifyTH
Ph Range	6.5-8.5
Recommended Uses For Product	testing water hardness for water softeners, dishwashers, wells, spas, and pools
Sterility Rating	6.5-8.5
UPC	618149116515
Unit Count	100 Count

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