| ACCORD | 952 | Accord 952 is called out with 2 cones. Shoemaker HVL is called out with 3 cones. Both models have the same number of cones. |
| AIRMATE | 1302 | Airmate 1302 series is called a 2 cone face and Shoemaker HVL is called a 3 cone face but they have the same number of cones. |
| CONTINENTAL | FPD | Continental FPD called out as a 2 cone design and an insulation blanket. Shoemaker HVL is called out as a 3 cone design and does not have an insulations blanket. Both models have the same number of cones. |
| HART & COOLEY | FPD | Hart & Cooley FPD is called out as a 2 cone design. Shoemaker HVL is called out as a 3 cone design. Both models have the same number of cones. |
| KRUEGER | 51450 | Krueger 51450 is standard aluminum. Shoemaker HVL is standard steel but available in aluminum. |
| KRUEGER | 1450 | |
| LIMA | 1520 | |
| METAL FAB | L2C | Metal Fab L2C is called out as a 2 cone diffuser. Shoemaker HVL is called out as a 3 cone diffuser. Both models have the same number of cones. |
| METALAIRE | 5700 | Metalaire 5700 is called out as a 2 cone face. Shoemaker HVL is called out as a 3 cone face. Both models have the same number of cones. |
| NAILOR | RNS3-L | |
| PRICE | SCDA | See HVL-ADJ. |
| PRICE | SCD-3 Cone | |
| PRO SELECT | PSHVD | Pro Select PSHVD is called out as 2 cones. Shoemaker HVL is called out as 3 cones. Both models have the same number of cones. |
| TRU AIRE | 2003CD | Tru Aire 2003CD is called out as a 2 cone. Shoemaker HVL is called out as a 3 cone. Both models have the same number of cones. |
| TUTTLE & BAILEY | S1200 | Tuttle & Bailey S1200 called out as 2 cone. Shoemaker HVL called out as 3 cone. Both models have the same number of cones. |
| US AIRE | 4700-6 | US Aire 4700-6 called out as 2 cone. Shoemaker HVL called out as 3 cone. Both models have the same number of cones. |