Attributes

Brand	-
Category	Sports, Yoga, Fitness & Fan Gear / Pool Equipment
Origin	-
Test Parameters	Residual Chlorine (OTO), pH, Total Alkalinity
Application	Swimming Pools, Hot Tubs, Spas, Tap Water
Test Method	Liquid Reagent Drop Count & Color Comparison
Number of Tests	Approximately 50-75 tests per kit
Reagent Type	Liquid Drops (Phenol Red and OTO)
Material	Durable Plastic Comparator Block
Accuracy Range (pH)	6.8 to 8.2
Accuracy Range (Chlorine)	0.1 to 5.0 ppm
Storage Conditions	Cool, dry place away from direct sunlight
Kit Contents	Comparator, 2 Reagent Bottles, Instruction Manual, Color Chart

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Essential for pool owners

This kit is incredibly easy to use. The color chart is clear, and the drops mix instantly. I test my pool water twice a week now, and it gives me peace of mind knowing the chemical levels are safe for my kids.

Anonymous

Mar 24, 2026

Rating: 5/5

Clear results every time

I love how distinct the color changes are. Even in low light, I can tell if my pH is off. Much better than the strips I used to use which were always hard to read.

Anonymous

Mar 21, 2026

Rating: 5/5

Perfect for hot tubs

I bought this specifically for my backyard spa. It fits perfectly in the cabinet, and the instructions are straightforward. No more guessing if the water is balanced!

Anonymous

Mar 17, 2026

Rating: 4/5

Good value for the price

Works well for basic testing. The plastic case feels a bit lightweight, but the reagents seem accurate when compared to my local pool store's digital tester. Great for routine checks.

Anonymous

Mar 11, 2026

Rating: 4/5

Reliable and fast

Takes less than two minutes to get a full reading on chlorine and pH. The comparator block is sturdy enough. Would recommend keeping it indoors when not in use to preserve the reagents.

Anonymous

Mar 03, 2026

Rating: 3/5

Decent but caps leak slightly

The testing accuracy seems fine, but one of the reagent bottle caps arrived loose, causing a small spill in the box. I secured it with tape, and it works okay now. Just check the seals upon arrival.

5 FAQ

Q: What do I do if the water sample turns cloudy after adding drops?

A: Cloudiness usually indicates high calcium hardness or the presence of other contaminants. Ensure you are using fresh water from elbow-depth in the pool. If it persists, consider testing for total alkalinity and calcium hardness separately.

Q: Does this come with a carrying case?

A: Yes, the kit includes a durable plastic comparator block that doubles as a protective case for the two reagent bottles, making it compact and easy to store.

Q: How often should I replace the reagent bottles?

A: For best accuracy, we recommend replacing liquid reagents every swimming season or within 12 months of opening. Always store them in a cool, dark place to extend their life.

Q: Can this kit test bromine levels as well?

A: This specific kit is designed for OTO residual chlorine and pH testing. While OTO can sometimes react with bromine, for accurate bromine readings, we suggest purchasing a kit specifically labeled for DPD or Bromine testing.

Q: Is the color chart easy to read for someone with color blindness?

A: The color gradients are standard for the industry. While we strive for high contrast, users with color vision deficiencies might find digital testers or assistance from another person helpful for precise matching.

Explore your interests

Fly-Knit Women's Jazz Dance Shoes, Soft-Sole Practice Shoes, Cheerleading Performance Dance Shoes, Ballet Shoes, Ethnic Belly Dance Shoes

$35.90

Clearance Sale: Slight Defects - Spring/Summer Tactical Single-Layer Windproof Waterproof Hiking Jacket for Men

$79.00

/In Stock/ CCM AS1 Kids' Ice Hockey Gloves - Protective Type Ice Hockey Gloves

$459.62

Golf Swing Training Rope Golf Indoor Swing Practice Device Trainer Exercise Rope Power Rope

$35.30

Australian RIPCURL Water Shoes Short Boots for Wakeboarding, Snorkeling, Puncture & Scratch Protection, Quick-Dry Surfing Shoes

$211.00

Upper and Lower Limb Electric Rehabilitation Machine: Smart Recumbent Exercise Bike, Home Pedal Bike, Rehabilitation Training Equipment for Elderly and Hemiplegic Patients

$1,069.00

YOTTOY Solid Foam Roller - Wolf Tooth Bar for Leg Slimming, Professional Fitness Aid for Beginners, Yoga Column

$58.60

LEO Integrated Flat Solid Tip Ice Fishing Raft Rod Winter Fishing Set for Export to Russia

$22.55

VICTOR Badminton Racket Grommet Round Pin Anti-Collapse Rubber Granule Single Double Hole Grommet AC321

$44.90

New Wireless Dual-Player Rechargeable HD Dance Mat: Running Game Compatible with TV and PC for Home Motion Sensing Entertainment

$258.00

Huangdi New Latin Dance Top for Women - Autumn/Winter Ballroom Practice Shirt for Adult Standard Dance

$76.90

Decathlon Men's Swim Trunks Anti-Embarrassment Specialized for Swimming Training Middle School Students Large Size Men's Swimsuit Hot Spring Set WWK1

$69.90

Lingte All-Terrain Folding Stool: New Multi-Function Portable Fishing Chair for Wild Fishing

$59.80

Kids' Handmade Bean Bags and Shuttlecocks - Thick Canvas Buckwheat Hull Throw Bags for Kindergarten and Elementary School Toys

$5.60

Fierce EPP Squat Foot Pad Power Assistant, Deadlift Footrest, Calf Stretch Slant Board Adjustable Foot Pad

$58.40

Nine Suns Mountain Boxing Hand Wraps - Unisex Sports Bandages for Sanda, Hand Protection, Glove Wraps, Muay Thai Binding Strips

$22.10

Surfskate Skateboard Trucks S5 Truck Bridge Skateboard Steering S7 Bridge No-Push Slide Surfskate Bridge CX4

$67.10

60mm Golf Balls EVA Foam Balls Indoor Practice Balls Sponge Balls Solid Color Balls Toys Soft Balls Entertainment Colored Balls

$1.50

Fitness Barbell Women Glute Training Set Men Home Children Aerobics Weightlifting Squat Equipment Cast Iron Rubber Coated Dumbbell Plates

$47.60

SF Express Aomi Little Cannon Pool Cue - Large Tip Two-Piece Chinese Black 8-Ball Handcrafted American 9-Ball Shaft

$62.90

Professional Sports Socks - Thickened Terry Bottom, Thin Men's Mid-Calf Cotton Socks with Odor Control, Available in Multiple Colors

$11.00

American Football Shoes Special Messi Soccer Cleats Men/Women Mismatched Low-Top AG Long Studs Student Youth 000CDE

$228.00

PGM Children's Golf Club No. 7 Iron Boys Girls Non-Toy Youth Carbon Fiber Seven Iron

$118.00

Sports Elbow Sleeve Joint Protector: Women's/Men's Elbow Guard for Fitness, Tennis, Badminton, Basketball

$13.50

OES Electric Stepper Machine - Foot Rehabilitation Treadmill for Home Fitness, Stair Climbing Exercise Device with Quiet Operation

$600.00

Sweat-Wiping Wristband Men Women Running Basketball Sweat-Absorbing Heat-Dissipating Cold Feel Ice Feel Summer Wrist Towel Marathon Sports Protective Gear

$6.00

Scooter for Children and Adults, Boys' Beginner Dragon Board, Two-Wheel Snake Board Twist Skateboard for Ages 6-8-14+

$61.78

Swimming Kickboard for Adults and Kids - Floatation Aid Training Tool, Back Float for Beginners, Triangular Kick Board

$18.90

Meiyu Blue Phantom MY942 Navy Modern Dance Dress - Rhinestone-Embellished Performance Gown for Ballroom Dancing and Waltz

$304.00

SPORTS B7PRO Badminton Serving Robot Trainer, Personal Portable Equipment with Coaching Functions

$5,699.00

Outdoor Training Whistle for Soccer and Basketball Referees - High-Volume Metal Copper Whistle with Mouthguard for Drills

$25.80

Foam Roller for Muscle Relaxation - Not for Leg Slimming; Wolf-Tooth Fascia Massage Stick, Rolling Wheel, and Ring Leg Clip Set

$20.00

Scoreboard Basketball Scoring Board Flip Score Card Table Tennis Soccer Badminton Billiards Competition Scoring Board

$5.87

Senior Tianlong Honggu Fishing Rod, Lightweight Comprehensive Giant Fish Pole, High-Carbon Freshwater Front-Strike Rod with Three Positioning and No Line Cutting

$1,003.00

Heelless High Heels 20CM - Ultra-High Platform Sandals for Nightclubs, Erotic Shows, Stage Performances, Cosplay, and Pole Dancing

$248.00

Lumbar Relief Stretcher for Shoulder Slimming and Back Thinning - Yoga Spine Corrector for Hunchback Relaxation, Massage Device with Waist Support for Outdoor Use

$14.90