Water Quality Testers

(173 results)
Hill's® Science Diet® Sensitive Stomach & Skin Adult Dry Dog Food - Chicken & Barley
4 sizes 1 flavor
(1752)
$23.99 - $97.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Sensitive Stomach & Skin Adult Wet Dog Food - Turkey & Rice, 12.5 oz
(742)
$4.09
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's Science Diet Perfect Weight Adult Dry Dog Food - Chicken
3 sizes 1 flavor
(1152)
$25.99 - $87.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Perfect Weight Adult Dry Cat Food - Chicken
3 sizes 1 flavor
(1469)
$24.99 - $65.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's Science Diet Perfect Weight & Joint Support Large Breed Adult Dry Dog Food - Chicken & Rice
(161)
$89.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Adult Dry Dog Food - Chicken & Barley
4 sizes 1 flavor
(1600)
$20.99 - $97.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Large Breed Adult Dry Dog Food - Chicken & Barley
3 sizes 1 flavor
(1189)
$49.99 - $97.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Large Breed Adult Dry Dog Food - Lamb & Brown Rice
(697)
$83.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Sensitive Stomach & Skin Adult Dry Cat Food - Chicken
3 sizes 1 flavor
(1331)
$23.99 - $63.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Small & Mini Adult Dry Dog Food - Chicken & Brown Rice
2 sizes 1 flavor
(1061)
$23.99 - $57.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Indoor Adult Dry Cat Food - Chicken
3 sizes 1 flavor
(1587)
$21.99 - $60.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Perfect Weight Adult Wet Dog Food - Vegetable & Chicken Stew, 12.5 oz
(680)
$4.19
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Urinary Hairball Control Adult Wet Cat Food - Minced, 5.5 oz
(380)
$2.69
$2.89
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Sensitive Stomach & Skin Adult Wet Dog Food - Chicken & Vegetable, 12.8 oz
(865)
$4.09
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Savory Stew Senior 7+ Wet Dog Food - Beef & Vegetable, 12.8 oz
(460)
$3.49
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Savory Stew Adult Wet Dog Food - Beef & Vegetable, 12.8 oz
(56)
$3.49
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Sensitive Stomach & Skin Large Breed Adult Dry Dog Food - Chicken & Barley
(319)
$83.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Perfect Digestion Adult Dry Dog Food - Salmon, Brown Rice & Whole Oats
3 sizes 1 flavor
(863)
$24.99 - $85.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Small Bites Adult Dry Dog Food - Chicken & Barley
4 sizes 1 flavor
(1276)
$20.99 - $97.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Senior 7+ Dry Dog Food - Chicken, Barley & Brown Rice
3 sizes
(844)
$20.99 - $80.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Sensitive Stomach & Skin Small Bites Adult Dog Dry Food - Chicken & Barley
3 sizes 1 flavor
(1252)
$23.99 - $83.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Urinary Hairball Control Adult Dry Cat Food - Chicken
3 sizes 1 flavor
(999)
$24.99 - $66.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's Science Diet Large Breed Puppy Dry Dog Food - Chicken & Brown Rice
2 sizes 1 flavor
(712)
$49.99 - $74.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's Science Diet Adult Dog Dry Food - Salmon & Brown Rice Recipe
3 sizes
(82)
$21.99 - $83.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Large Breed Senior 6+ Dry Dog Food - Chicken Recipe
(657)
$80.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Adult Dry Cat Food - Chicken
3 sizes 1 flavor
(1224)
$21.99 - $60.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Perfect Weight Small & Mini Adult Dry Dog Food - Chicken Recipe
2 sizes 1 flavor
(1293)
$25.99 - $60.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Sensitive Stomach & Skin Small & Mini Adult Dog Dry Food - Chicken & Rice
2 sizes 1 flavor
(989)
$23.99 - $57.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's Science Diet Perfect Digestion Adult Wet Dog Food - Chicken, Vegetable & Rice Stew, 12.8 oz
(131)
$4.19
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Oral Care Adult Dry Cat Food - Chicken
2 sizes 1 flavor
(844)
$23.99 - $37.99
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's Science Diet Sensitive Stomach & Skin Adult Dog Wet Food - Chicken & Vegetable Stew, 12.5 oz
(46)
$4.09
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Healthy Cuisine Adult Wet Cat Food - Chunks & Gravy, 2.8 oz
(687)
$1.99
$2.19
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Sensitive Stomach & Skin Adult Wet Dog Food - Salmon & Vegetable, 12.8 oz
(317)
$4.09
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Adult Wet Dog Food - Chicken & Barley, 13 oz
(20)
$3.49
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Savory Stew Adult Wet Dog Food - Chicken & Vegetable, 12.8 oz
(268)
$3.49
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Senior 7+ Wet Dog Food - Chicken & Barley, 13 oz
(458)
$3.49
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Savory Stew Senior 7+ Wet Dog Food - Chicken & Vegetable, 12.8 oz
(28)
$3.49
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's Science Diet Healthy Cuisine Adult Wet Dog Food - Roasted Chicken, Carrots & Spinach, 12.5 oz
(782)
$3.89
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's® Science Diet® Adult Wet Dog Food - Beef & Barley, 13 oz
(391)
$3.49
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
Hill's Science Diet Healthy Cuisine Adult Wet Dog Food - Braised Beef, Carrots & Peas, 12.5 oz
(666)
$3.89
Earn 5,000 points ($10 in savings) when you place a $40 Free Same Day Delivery order
Save 35% On Your First Autoship Order!
+ 4 more
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Help your finned friends get the most out of life by testing their water quality often. Ensuring that the water they’re swimming around in is in good condition is essential for their health and wellbeing. PetSmart’s collection of water test kits and water quality testers will help your fish live their best life. Give them water they can thrive in with one of our water quality test strips or kits. 
At PetSmart, you’ll find easy aquarium test strips and complete water testing kits for both freshwater and saltwater fish tanks. Invest in a water quality tester to check pH levels and ammonia, as well as chlorine and chloramine, nitrites, nitrates, water hardness, and more. 
In addition to water quality testers and water test kits, PetSmart has everything else you need to give your fish the absolute best care, including:
And for all you new fish parents who are just getting started with your aquariums, we even offer aquarium starter kits and a full selection of aquarium products that make it easy to start and maintain a new aquarium.
PetSmart also offers convenient shopping with curbside or in-store pickup. Need something today? We have select items available for same-day delivery in most areas powered by DoorDash. For items you purchase frequently, PetSmart has Autoship that automatically delivers the items you want to your door as often as you’d like. Check the website to see what items are eligible.