DuraVent 58DVA-E45 45° Elbow Type_Electric Fireplaces BioGuard Balance Pak 300 is

BioGuard Balance Pak 300 is a calcium hardness increaser

it's a simple addition that makes the whole system easier to live with

Effective Length 4"

DuraVent 58DVA-X46 Reducer

Callaway 50

DuraVent 58DVA-E45 45° Elbow Type_Electric Fireplaces BioGuard Balance Pak 300 isDuraVent 58DVA E45 45 Elbow Overview Use to offset obstructions as needed. Fully unitized, twist lock construction. Elbow swivel, allowing the lock to remain fully engaged while aligning the desired direction. The angle will remain fixed at 45. What's in the Box 1 x DuraVent 58DVA E45 45 Elbow Specifications Material: Galvanized Steel Diameters: 5" x 8" Inner Material: Aluminum Brand DuraVent