Home > Super Sprues > Super Spru™ Direct Reservoir Sprues

Super Spru Reservoirs
Scientifically designed alloy reservoir for casting density and fit.


Product Overview :

Used for the direct casting of veneer crowns, cast crowns, and veneer bridge shapes. The scientifically designed 1/4" melting reservoir guarantees optimum alloy flow, eliminates suck-back, controls shrinkage porosity, and guarantees dense, porous-free castings.

Key Benefits:

  • Optimum alloy flow.
  • Controls shrinkage porosity.
  • Produces smooth, accurate casts.

Technical Information:


  • 1/4" reservoir.
  • 8 gauge stem.