The Rapicide™ OPA/28 Test Strips from SPS Medical Supply verify that a reprocessing bath of Rapicide OPA/28 high-level disinfectant is still at or above its minimum effective concentration. Each bottle holds 50 single-use strips, and the pass/fail color chart is printed on the bottle itself. Sold as a single bottle or a case of two.Features & Benefits Test strips for Rapicide OPA feature a large, easy to read indicator pad. Color chart on bottle provides a pass/fail reference. 3-second dip time with 90-second read time Pack & Ordering Cross-Reference Pack Order SKU McKesson Item # MPN Test Strips Case of 2 bottles 835024_CS 835024 ML02-0137 100 (2 × 50) Bottle 835024_BT 835024 ML02-0137 50 Specifications Manufacturer SPS Medical Supply Manufacturer Number (MPN) ML02-0137 Brand Rapicide™ OPA/28 McKesson Item # 835024 Test Strips per Bottle 50 Container Type Bottle Form Pad Chemistry Monitored OPA (ortho-phthalaldehyde) For Use With Rapicide® OPA/28 OPA High-Level Disinfectant (ML02-0127). Each high-level disinfectant takes its own manufacturer-validated indicator; these strips are specified for Rapicide OPA/28. Dip / Read Time 3 seconds dip, 90 seconds read Usage Single Use Country of Origin United States