It may be difficult to tell the difference between type l and type b vents because they are made from similar components but the vent type should be clearly printed on the vent.
Single wall type b vent.
Hart cooley llc.
4 inch duraconnect ii collection.
Adfc double wall gas vent segment.
Type bw gas vent type b 2x4 stud wall single appliance multiple appliance multiple appliance with manifold type b gas vent systems give you these important advantages safety of the hart cooley system is assured by the double wall air insulated design and locking joints.
Type b gas vent models m and mo double wall type b gas vent for approved category i natural gas or propane fired appliances gas furnaces heaters fireplaces and boilers in accordance with nfpa 211 standards for chimneys fireplaces vents and solid fuel burning appliances and nfpa 54 the national fuel gas code.
Fc ac single wall appliance connector.
Duravent 4 inner diameter duraconnect ii type b gas vent double wall 12 flex pipe length.
Cap ends feature a snaplock design.
Fc single wall flexible gas vent connector.
Fcx single wall increaser.
Ameri flex single wall flexible pipe sections feature single wall corrugated aluminum construction and are designed to connect from appliances to type b gas vents.
Fca single wall universal adapter.