Hach Union Mounting Hardware for 3700-series Sensors, MH538N3NZBy Hach $378.00 | EA Quantity discounts available QuantityPrice Product #: 703922Mfr. Part #: MH538N3NZOut of Stock - Ships in 5-10 Days Quantity -+ Add to Cart Free Ground Shipping On All Orders Over $1500!*Conditions Apply* Details Description Hach Union Mounting Hardware for 3700-series Sensors, MH538N3NZ Product Specifications Weight ... DetailsBackDescriptionHach Union Mounting Hardware for 3700-series Sensors, MH538N3NZProduct SpecificationsWeight1.7000