Photometer Phenol Red tablets x 250.
Used for testing (with kit) the pH of water in your swimming pool, spa or hot tub (testing pH range 6.8 – 8.4)
Box contains 250 tablets, foil sealed in blister pack.
Photometer Phenol Red x 250 Tablets
£21.60 inc VAT
Photometer Phenol Red tablets x 250.
