Sentry Mardel makes testing easy. 5 in 1 test strips use the same technology found in medical laboratories. The accurately measure pH, hardness, alkalinity, nitrite and nitrate levels. They are designed to be accurate and dependable while being safe and easy-to-use. The easy read color chart makes matching the color on the strip pad easy. Simply place the strip behind the chart and align the pads to the corresponding holes. Match the color of the pad to the closest color area. The wider color block around the hold gives a better visual comparison for the eye to correctly match the pad color.
Internet Price: $7.99 Today's Price: $5.99 (Save 25%)
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Usually Leaves Warehouse the Next Business Day
Pack of 4 strips
1 Month Supply
With Repeat Delivery, have your favorite pet food and supplies automatically delivered right to your door. No more last minute trips to the store! Best of all, if your items are on sale at the time of your scheduled delivery, you'll automatically receive our guaranteed lowest price!
All of the products your pet needs on a regular basis are available. Choose from food, flea & tick products, medications, vitamins, supplements and much more for all pets.
To sign up:
1. Browse to the product page of the items you wish to add to your Repeat Delivery. Anytime you see this button on a product page, items on the page are available for your Repeat Delivery.
2. Select the quantity of each item you wish to add and click the button.
3. On the next page, name your Repeat Delivery and choose the delivery frequency. You can choose to start your Repeat Delivery shipments immediately, or select a date up to 30 days in advance.
When you sign up for Repeat Delivery, you can select a delivery schedule for your Repeat Delivery - from one to twelve weeks. You can also choose to have your order shipped immediately or shipped at a future date. Your settings will be saved. We'll even send you an email to remind you when your delivery is on its way.
$7.49 to $26.99
$1.12 to $3.74