Abstract: A system for air handling, the system includes a pipe comprised of plastic having an oval cross-section. The system may further include a register boot comprised of plastic having a main body with a first opening and a second opening wherein the first opening has an oval cross-section for connection with an oval pipe and wherein the second opening is generally rectangular for fitting a register cover. The system may further include a fitting having a first end and a second end, the first end having a round opening and a second opening having an oval cross-section and a main body between the first end and the second end. The main body may be sized and shaped such that the round opening is presented orthogonally to the second opening. The system may further include a t-fitting having a first segment with a first opening attached to a second segment orthogonal to the first segment, the second segment having first and second opposite openings.

Abstract: A system for air handling, the system includes a pipe comprised of plastic having an oval cross-section. The system may further include a register boot comprised of plastic having a main body with a first opening and a second opening wherein the first opening has an oval cross-section for connection with an oval pipe and wherein the second opening is generally rectangular for fitting a register cover. The system may further include a fitting having a first end and a second end, the first end having a round opening and a second opening having an oval cross-section and a main body between the first end and the second end. The main body may be sized and shaped such that the round opening is presented orthogonally to the second opening. The system may further include a t-fitting having a first segment with a first opening attached to a second segment orthogonal to the first segment, the second segment having first and second opposite openings.

Abstract: A complete plastic HVAC system assembled using individual plastic components for ensuring the efficient and quiet distribution of air from a central air unit to multiple distribution points and preventing heating and cooling losses, the need for installers to stock multiple sized and shaped components, the accumulation of dust, dirt and pollens during storing, installing and use on the surfaces of the individual components. The fittings have a collar sizable to fit both 6 and 7-inch pipe, whether flexible or rigid. The use of plastic fittings, duct and pipe removes the potential of injury commonly associated with conventional metal ductwork, while providing seamless components that can be configured for any type of installation and insure an air tight connection between adjoining surfaces. The individual fittings include a register boot, torpedo boot, straight boot, rigid and flexible pipe and couplers, straight and 90-degree takeoffs, a plastic duct and duct end cap.

Abstract: A complete plastic HVAC system assembled using individual plastic components for ensuring the efficient and quiet distribution of air from a central air unit to multiple distribution points and preventing heating and cooling losses, the need for installers to stock multiple sized and shaped components, the accumulation of dust, dirt and pollens during storing, installing and use on the surfaces of the individual components. The fittings have a collar sizable to fit both 6 and 7-inch pipe, whether flexible or rigid. The use of plastic fittings, duct and pipe removes the potential of injury commonly associated with conventional metal ductwork, while providing seamless components that can be configured for any type of installation and insure an air tight connection between adjoining surfaces. The individual fittings include a register boot, torpedo boot, straight boot, rigid and flexible pipe and couplers, straight and 90-degree takeoffs, a plastic duct and duct end cap.