Water Preservative Solution SKU: 1709-10007 UOM: Pack of 4 Sign up to create a quote + – Add to Quote Specifications SPECS westernex_eye_protection.pdf Brochure westernex_safety_ppe.pdf Features & Benefits236mL bottle. Adding Water Additive to eyewash to protect against bacteria, fungus, algae, and other micro-organisms. One bottle preserves between 23-75 litres of water for up to four months.