the cover snaps down over the screws

and the unit is completely assembled and water tested prior to shipping

Guide Bracket

Model #5KS444LAA208

All stainless external construction

Zurn Reduced Pressure Zone Backflow Preventer, Low Lead Cast Bronze, Wilkins 375XL Series, FNPT Connectio - 1-375XL Centerpull Paper Towel Dispensers the cover snaps down overReduced Pressure Zone Backflow Preventer; Series: Wilkins 375XL; Size: 1 in; Connection: FNPT; Body Material: Low Lead Cast Bronze; Temp. Range: 33 Degrees to 180 Degrees F; Max. Temp.: 180 Degrees F; Max. Pressure: 175 psi; Width: 4 1 2 in; Length: 11 3 16 in; Standards: ASSE Listed 1013, Annex G Certified By NSF International, Approved By The Foundation for Cross Connection Control and Hydraulic Research At The University of Southern California, CSA