DB-R4 – DUCTBOARD (4’X10′ – 1″)
$71.67R-4 ductboard sheet, 1″ thick, 4’x10′. Fiberglass board with foil facing used to build or repair duct systems. Owens Corning 703-type. Cut and fold to make your own ductwork.
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R-4 ductboard sheet, 1″ thick, 4’x10′. Fiberglass board with foil facing used to build or repair duct systems. Owens Corning 703-type. Cut and fold to make your own ductwork.

R-6 ductboard sheet, 1.5″ thick, 4’x10′. Fiberglass board with foil facing for building or repairing duct systems. Higher insulation than R-4 for attics and unconditioned spaces.

DiversiTech DF-75 Drain Dawg inflatable drain tip. Fits 3/4″ and 1″ drain lines. Use with nitrogen or CO2 to blow out condensate line clogs. Rated to 140 PSI.

6-inch inline duct booster fan, 120V. Boosts airflow in a weak duct run. Installs inside round ductwork to push more air to rooms that don’t get enough.

8-inch inline duct booster fan, 120V. Boosts airflow in a weak duct run. Installs inside round ductwork to push more air to rooms that don’t get enough.

10-inch inline duct booster fan, 120V. Boosts airflow in a weak duct run. Installs inside round ductwork to push more air to rooms that don’t get enough.

12-inch inline duct booster fan, 120V. Boosts airflow in a weak duct run. Installs inside round ductwork to push more air to rooms that don’t get enough.

Insulated filter plenum, 16″ x 25″ opening, 30″ long. Attaches to your furnace or air handler and holds up to a 4″ filter. R-6 lined interior.

Insulated filter plenum, 20″ x 20″ opening, 30″ long. Attaches to your furnace or air handler and holds up to a 4″ filter. R-6 lined interior.

Insulated filter plenum, 20″ x 25″ opening, door on 20″ side, 30″ long. Attaches to furnace or air handler. Holds up to a 4″ filter. R-6 lined.

Insulated filter plenum, 20″ x 25″ opening, door on 25″ side, 30″ long. Attaches to furnace or air handler. Holds up to a 4″ filter. R-6 lined.

DiversiTech DP-1 nitrogen purge tool. Adjustable flow dial for controlled nitrogen purge during brazing. Aluminum body, 50 PSI inlet. Essential for AC line work.

Galvanized secondary drain pan, 14″ x 44″, with drain on the 14″ side. Sits under your indoor coil or air handler to catch overflow if the primary drain clogs.

Galvanized secondary drain pan, 30″ x 30″. Sits under your indoor coil or air handler to catch overflow if the primary drain clogs. Prevents water damage.

Galvanized secondary drain pan, 35″ x 31″, with drain on the 35″ (long) side. Catches overflow under your indoor coil or air handler if the primary drain clogs.

Galvanized secondary drain pan, 36″ x 36″. Sits under your indoor coil or air handler to catch overflow if the primary drain clogs. Fits 3- to 4-ton units.

Galvanized secondary drain pan, 60″ x 30″, with drain on the 60″ (long) side. Catches overflow under your indoor coil or air handler. Fits 4- to 5-ton units.

Fieldpiece DR82 infrared refrigerant leak detector. Detects leaks as small as 0.03 oz/yr. 10-year sensor life and 10-hour rechargeable battery. No false alarms from common gases.

3-inch to 4-inch double-wall flue pipe increaser for Type B gas vent. Transitions from a 3″ appliance outlet to a 4″ vent run. ECCO Manufacturing 200358.

4-inch to 5-inch double-wall flue pipe increaser for Type B gas vent. Transitions from 4″ to 5″ vent pipe. ECCO Manufacturing 200458. Aluminum/galvanized construction.

4-inch to 6-inch double-wall flue pipe increaser for Type B gas vent. Transitions from 4″ to 6″ vent pipe. ECCO Manufacturing 200459. Aluminum/galvanized construction.

4-inch double-wall 90-degree elbow for Type B gas vent. Changes vent direction by 90 degrees. ECCO Manufacturing 200414. Aluminum inner, galvanized outer.

4-inch adjustable roof flashing for Type B gas vent. Fits roof pitches from 1/12 to 7/12 (low to moderate slope). ECCO Manufacturing 200408. Keeps water out at the penetration.

4-inch double-wall rain cap for Type B gas vent. Keeps rain, debris, and animals out of the vent termination. ECCO Manufacturing 200406. Galvanized steel.

4-inch double-wall draft hood connector for Type B gas vent. Connects the appliance draft hood to the vent system. ECCO Manufacturing 200415.

4-inch double-wall female sleeve adapter for Type B gas vent. Connects B-vent pipe to appliances. ECCO Manufacturing 200473. Also listed as 4M6AF.

4-inch adjustable roof flashing for Type B gas vent. Fits roof pitches from 8/12 to 12/12 (steep slope). ECCO Manufacturing 200428. For steep roofs only.

4-inch double-wall storm collar for Type B gas vent. Seals the gap where the vent pipe passes through the roof. ECCO Manufacturing 200490. Galvanized steel.

4-inch x 12-inch solid (non-adjustable) Type B gas vent pipe. Double-wall with aluminum inner liner and galvanized outer. ECCO Manufacturing 200404. Fixed 12″ length.

4-inch adjustable Type B gas vent pipe, extends 4 to 10 inches. Double-wall with aluminum inner and galvanized outer. ECCO Manufacturing 200405. Telescopes to fit.

4-inch x 24-inch solid Type B gas vent pipe. Double-wall with aluminum inner liner and galvanized outer. ECCO Manufacturing 200452. Fixed 24″ length.

4-inch x 36-inch solid Type B gas vent pipe. Double-wall with aluminum inner liner and galvanized outer. ECCO Manufacturing 200402. Fixed 3-foot length.

4-inch x 36-inch flexible gas vent connector. Double-wall with aluminum inner and galvanized outer. ECCO Manufacturing 200493. Bends to fit tight spaces.

4-inch x 48-inch solid Type B gas vent pipe. Double-wall with aluminum inner liner and galvanized outer. ECCO Manufacturing 200450. Fixed 4-foot length.

4-inch x 60-inch solid Type B gas vent pipe. Double-wall with aluminum inner liner and galvanized outer. ECCO Manufacturing 200401. Fixed 5-foot length.

4-inch x 60-inch flexible gas vent connector. Double-wall with aluminum inner and galvanized outer. ECCO Manufacturing 200495. Extra length for difficult runs.

5-inch to 6-inch double-wall flue pipe increaser for Type B gas vent. Transitions from 5″ to 6″ vent pipe. ECCO Manufacturing 210558. Aluminum/galvanized construction.

Daizuki 1-ton mini-split heat pump system, 12,000 BTU, 120V, 19 SEER2. Includes indoor and outdoor units. WiFi-enabled with BlueFin corrosion protection. Heats and cools.

Daizuki 1-ton mini-split heat pump system, 12,000 BTU, 240V, 20 SEER2. Includes indoor head and outdoor unit. WiFi-enabled with Blue Fin coil protection.

Daizuki 1.5-ton mini-split heat pump system, 18,000 BTU, 240V, 19 SEER2. WiFi-enabled with BlueFin corrosion protection. Heats and cools a single zone.

Daizuki 2-ton mini-split heat pump system, 24,000 BTU, 240V, 18 SEER2. WiFi-enabled with BlueFin corrosion protection. Heats and cools a single zone.

Daizuki 3-ton mini-split heat pump system, 36,000 BTU, 240V, 17 SEER2. WiFi-enabled with BlueFin corrosion protection. Heats and cools large single zones.

EAFHE1620-2 filter base for electric air handlers, 16×20 filter size. Accepts a 1″ thick filter. Insulated housing with magnetic door latch. Up to 5 tons.

EAFHE1620-6 filter base for electric air handlers, 16×20 filter size. Accepts 1″, 2″, or 4″ thick filters. Insulated housing with magnetic door latch. Up to 5 tons.

EAFHE2020-2 filter base for electric air handlers, 20×20 filter size. Accepts a 1″ thick filter. Insulated housing with magnetic door latch. Up to 5 tons.

EAFHE2020-6 filter base for electric air handlers, 20×20 filter size. Accepts 1″, 2″, or 4″ thick filters. Insulated housing with magnetic door latch. Up to 5 tons.

EAFHE2025-2 filter base for electric air handlers, 20×25 filter size. Accepts a 1″ thick filter. Insulated housing with magnetic door latch. Up to 5 tons.

EAFHE2025-6 filter base for electric air handlers, 20×25 filter size. Accepts 1″, 2″, or 4″ thick filters. Insulated housing with magnetic door latch. Up to 5 tons.