Delvotest Cattle Penicillin 5 ppb Control, 6-Pack Size:6/box Stainless steel hardware is rust-resistant

Stainless steel hardware is rust-resistant for long-term use

13 strands of stainless steel wire for enhanced durability

Designed with the fit of Metalab's new ladies' oval cup for a better fitting spur and a lot more comfort

Maintain a healthy immune system in your feline friend with Urinary Support Formula Adult Dry Cat Food

18" Mid-Pressure Misting Fan with 40 Gallon Cooler

Delvotest Cattle Penicillin 5 ppb Control, 6-Pack Size:6/box Stainless steel hardware is rust-resistantDelvotest Penicillin 5 ppb Control, Box of 6 Vials Controls are an important component of any testing to ensure correct results. Gives you the assurance you need for the validity of your milk testing. Positive or negative controls available. (The positive control contains pencillin G at 5 ppb.) 6 count box.