The eye chart assists in measuring visual acuity at a distance of 20 feet away from the viewer..
The Snellen chart includes Red and Green color bars for an easy and helpful color vision test. Perfect for optometrists, students, offices, and schools..
Snellen wall eye chart is the familiar chart with the big letter or symbol at the top and progressively smaller letters at the bottom of the chart down to 20/20 or better..
Saltwater Aquarium Care Log: Reef Fish Tank Maintenance Record Book. Great For Monitoring Water Parameters, Water Change Schedule, And Breeding Conditions. All Essential To A Healthy Fish Habitat
★【Aquarium Test Strips】: It is important to test your aquarium weekly to verify good water quality with PULACO Aquarium test strips, 6 in 1 strips with colourful comparison chart, suitable for both freshwater and saltwater fish tank..
★【6 Material Testing】: PULACO test strips, combined 6 most critical water quality standard parameter,Hardness, Nitrate, Nitrite, Chlorine, Carbonate, pH..
★【How To Use】: Immerse the strip for 2 seconds and then remove the strip, do not shake excess water off, and then put the strip horizontally for 60 seconds, compare against the color chart and read immediately within 30 seconds to get accurate results..
★【Multipe Aquatic Usage】Can be used for testing various water quality: all fish tanks, shrimp tanks, aquarium plants tanks, fish ponds and many more..
★【OUR PROMISE TO YOU】PULACO test strips are very sensitive to the environment and changes to temperature. In the unlikely event your strips EVER stop working please contact us and we’ll send you a replacement bottle straight away..
Ergonomic Office Chair, High Back Mesh Desk Chair with Liftable Backrest Armrest, 3D Adjustable Lumbar Support Headrest Computer Executive Chair
...justment plus height adjustable arms, all provide you a customized seating experience.
【Breathable Mesh Back】The premium backrest features flexible mesh fabric without pattern, which gives you a cool feeling and comfortable sitting experience, promotes good air flow, eliminates sweating and moisture, to keep you focus and relax at the same time.
【Well Padded Seat】W-shaped design for the seat ensures you sit centrally .The front edge of the seat has a waterfall front, which ensures minimum pressure on your legs during prolonged seating periods. High-density sponge-filled cushion is soft and not easily deformed.
【High Quality & Easy Assembly】The surface of the arms is made of PU, a flexible plastic. This home office chair has passed the BIFMA test and the static pressure test of 1136 kg. Our ergonomic office chair can support a weight of up to 150 kg. Simple instructions enable anyone to put chair together in eight simple steps.
【3-Year Warranty】If there are any quality problems, Sihoo Home Office Chair promises to provide you with zero-profit product accessories within the three-year warranty period.
7 in 1 Pool & Spa Test Strips | Water Testing Kit Hot Tub Test Strips Detects pH, Chlorine, Bromine, Hardness, Alkalinity, Cyanuric Acid 100 Strips
COMPLETE TESTING KIT -Test strips for pools and spas ready to use hot tub test strips for your convenience.
tests for 7 parameters, pH, Free Chlorine, Total Chlorine, Bromine, Total Hardness, Total Alkalinity and Cyanuric Acid test strips.
ACCURATE AND FAST RESULTS - Pool testing kit for above ground pool, hot tubs, spas give results within seconds, strips come with a detailed color chart, detect low levels of impurities and chemicals, and strips help keep the water clean and safe..
EASY TO Use: Simply dip the strip in water and compare it with a color chart for instant and reliable results, so you don’t have to worry about complex tests, pool and spa test strips are easy to use..
LONG SHELF LIFE – 100 testing strips packed in one bottle and one storage bag.
strips in an open package need to be used within 3 months, so you can test your pool water quality at regular intervals and don't have to rush using all 100 strips.
MULTIPLE USES – Can be used for both fresh and salt water pool, spa, hot-tub and all other water sources.
200 Strips - Quaternary Sanitizer Test Strips 0-500 ppm (QAC, Multi Quat Value Pack) - Quaternary Test Strips - Quat Test Strips for Food Service - Quat Sanitizer Strips - Quaternary Ammonium Test Kit
...rules and regulations. Quat strips are useful at restaurants, bars, gyms, daycare centers, assisted-living facilities, schools and many more places..
???? QUAT SANITIZER TEST STRIPS: Our ammonia test kit range in test parameters between 0 and 500 ppm (0, 10, 25, 50, 100, 200, 400, 500) in an easy to read color range chart that will indicate the concentration level of your Quaternary Ammonium Compounds (QUAT) Sanitizer. Each bottle contains a clear print of the Lot Number, Manufacturing Date and Expiration Date for your control..
???? 200 TEST STRIPS PER BOTTLE: 200 test strips packed in a splash proof bottle with water resistant label for extra durability and protection. sani strips are manufactured with Long Plastic (3.5 in) strips to help you keep your fingers away from the solution not as quaternary test papers that could be inconvenient and could stick together at times..
???? VALUE PACK: With 200 Top Line Sanitizing Test Strips per bottle this is your perfect solution at a great value for your business. Click The “Add To Cart” Button ???? NOW!.
???? EXTREMELY ACCURATE & EASY TO USE: 1️⃣ Remove 1 strip from bottle and close bottle immediately. 2️⃣ Immerse strip into solution for 2 seconds then remove from solution. 3️⃣ Compare re....
Seroflora Vaginal pH Test Strips for Women - Monitor Vaginal Health & Yeast Infection - Easy to Use Pre-Cut pH Strips - Accurate Women’s Acidity & Alkalinity Balance (40 Strips)
MONITOR YOUR VAGINAL HEALTH – A quick and easy way to identify your vaginial pH levels accurately. For yeast infection test, vaginal health..
HIGH-QUALITY STRIPS – 40 Strips, 10 strips in each aluminum pouch sealed for freshness, The square test pad (yellow square) is affixed to a plastic strip, no paper to cut, for ease and convenience..
EASY TO READ COLOR CHART – Compare the color of the pad against the color chart on the bottle to better determine your vaginal pH level..
ACCURATE QUICK RESULTS – Unbalanced pH test results along with symptoms of unpleasant odor, dryness, irritation or itching, can be signs of vaginal conditions..
Desiccant Lid – Eliminate humidity from the air and keep our pH test strip fresh for accurate result..
