Taylor Technologies K-1004 Trouble-Shooter Pool/Spa Test Kit
Liquid reagents in the Taylor Residential Series K-1004 come in .75 oz. bottles. The Trouble-Shooter kit offers a choice of orthotolidine (OT) or N,N-diethyl-pphenylenediamine (DPD) for determining sanitizer residuals. DPD is recognized by public health authorities as the best method for testing pools and spas.