Viega Manabloc Install Kit - (1) Viega 50631 3/8-Inch and 1/2-Inch Manabloc Wrench and (3) Viega 46416 1-Inch by 1-Inch Crimp x Manabloc Supply Adapter - PureFlow Lead Free Brass Set includes 1 Manabloc wrench and 3 supply adapters Proven quality Non-corroding Excellent chlorine resistance Use with Compression MANABLOC or MINIBLOC only