Accessories · Testing and Reagents

Insta Test Magnesium 25pk

$67.00

Maintain balanced pool water with Insta Test Magnesium 25pk. These easy-to-use test strips provide a quick and accurate way to check magnesium levels in your pool. The simple testing process helps you monitor water balance and identify the difference between calcium and magnesium levels. Ideal for regular pool maintenance, they help you keep your water quality on track.

Why shop with us

NZ-wide shipping

We’ll send your order to you, wherever you are in New Zealand.

Retail team on call

Phone or email our pool experts for advice on any order.

Equipment warranty

Pumps, heaters and robotic cleaners are covered by manufacturer warranty, with our team on hand if anything needs sorting.

A Trusted Partnership

“The quality in manufacture of the pool, and the equipment offered as standard or available as an option, and the prices, are second to none.”

Murray Wright· Online store customer

Need advice before you buy?

Visit our Rosedale showroom for a free water test, or talk to our pool care team for tailored recommendations.