
LINE BLOWING
The GMP family of Line Blowing products are designed to be both rugged and economical. Available are a collection of accessories that will allow you to efficiently blow line ranging from 1 in. innerduct to 5 in. duct.
Line Blowing Kits for 1 1/4 , 1 1/2 and 2 in. innerduct
These three kits respectively contain the essentials for blowing 1/4 in. line thru a 1 1/4 in. and 2 in. innerduct.

The major components are a control valve, a 1/4 in. rope adapter and a 1 1/4 in., 1 1/2 in. or 2 in. innerduct seal-off.
The kit also includes:
- A Chicago fitting for connecting to the air supply.
- A quick disconnect fitting for attachment to the sealoffs
- A solid plug for pressurizing ducts
- A protective carrying case
Ordering Information
P/N | Description | Weight |
---|---|---|
89815 | Blow Gun Kit for 1 1/4 in. Innerduct | 4.6 lbs. (2.08kg) |
89817 | Blow Gun Kit for 1 1/2 in. Innerduct | 5.9 lbs. (2.67kg) |
89818 | Blow Gun Kit for 2 in. Innerduct | 7.1 lbs. (3.22kg) |

Line Blowing Kit for 4 in. conduit
This kit contains the essentials for blowing 1/4 in. line thru a 4 in. Conduit.
The major components are a control valve, a 1/4 in. rope adapter and a 4 in. conduit seal-off.

The kit also includes:
- A Chicago fitting for connecting to the air supply.
- A quick disconnect fitting for attachment to the sealoffs
- A solid plug for pressurizing ducts
- A protective carrying case
P/N 89816 Blow Gun Kit for 4″ Conduit Weight: 11.23 lbs. (5.09kg)
Control Valve
Utilizing a ball valve with a safety locking lever, the Control Valve allows control of air flow. Equipped with a Chicago fitting for connecting to the air supply. Also there’s a quick disconnect fitting is at the end for attachment of sealoffs. Comes standard with a solid plug in lieu of rope adapter for pressurizing ducts.
Ordering Information
P/N 89801 Control Valve Weight: 3 lbs. (1.36kg)
Rope Adapters
Allows for a wide range of rope diameters to be used with the above control valve
Ordering Information
P/N | Description | Weight |
---|---|---|
29448 | 3/16 in. (5mm) Rope Adapter | 2 oz. (57g) |
29446 | 1/4 in. (6mm) Rope Adapter | 2 oz. (57g) |
29447 | 3/8 in. (10mm) Rope Adapter | 2 oz. (57g) |
Innerduct Seal-offs
Featuring quick disconnects, these insert into the innerduct and twists tight for seal, utilizing the same Buttress thread as our Pulling Eyes
Ordering Information
P/N | Description | Weight |
---|---|---|
89803 | Duct Seal-off 3/4 in. | 1.2 lbs. (.54kg) |
89804 | Duct Seal-off 1 in. | 1.5 lbs. (.68kg) |
89805 | Duct Seal-off 1-1/4 in. | 2 lbs. (.90kg) |
89806 | Duct Seal-off 1-1/2 in. | 3.3 lbs. (1.5kg) |
89807 | Duct Seal-off 2 in. | 5 lbs. (2.27kg) |
Conduit Seal-offs
Securely fits into a duct with a turn of the wing-nut handle, expanding the two rubber plugs for a firm seal. 15 psi (1 bar) maximum.
Ordering Information
P/N | Description | Weight |
---|---|---|
89808 | Conduit Seal-off 2 in. | 6 lbs. (2.7kg) |
89809 | Conduit Seal-off 3 in. | 7 lbs. (3.2kg) |
89810 | Conduit Seal-off 3 1/2 in. | 8 lbs. (3.6kg) |
89811 | Conduit Seal-off 4 in. | 8 lbs. (3.6kg) |
89812 | Conduit Seal-off 4 1/2 in. | 10 lbs. (4.5kg) |
89813 | Conduit Seal-off 5 in. | 13 lbs. (5.9kg) |
89814 | Conduit Seal-off 6 in. | 16 lbs. (7.3kg) |
89820 | Optional Carry Case for Conduit Seal-off | 2 lbs. (1kg) |
Control Valve Inline Pressure Gauge
Placed inline between the control valve and an innerduct seal-off or conduit seal-off to accurately measure blowing pressures
Ordering Information
P/N 70699 Control Valve Inline Pressure Gauge Weight: 1.5 lbs. (.68kg)
Duct Projectiles
Constructed of molded rubber cones fastened to a heavy duty metal rod with fastening rings. Projectile is easily blown through duct with hand blower tool
Ordering Information
P/N | Description | Weight |
---|---|---|
70505 | Duct Projectile for 1 in. | 5 oz. (142g) |
70506 | Duct Projectile for 1 1/4 in. | 5 oz. (142g) |
70508 | Duct Projectile for 1 3/8 in. | 6 oz. (170g) |
70509 | Innerduct Projectile for 1 1/2 in. | 8 oz. (227g) |
70510 | Duct Projectile for 1 1/2 in. | 8 oz. (227g) |
70511 | Duct Projectile for 1 7/8 in. | 9 oz. (255g) |
70512 | Innerduct Projectile for 2 in. | 12 oz. (340g) |
70513 | Duct Projectile for 2 in. | 12 oz. (340g) |
70514 | Duct Projectile for 2 1/2 in. | 15 oz. (425g) |
70515 | Duct Projectile for 3 in. | 1 lb. (453g) |
70516 | Duct Projectile for 4 in. | 1 lb. (453g) |
70517 | Duct Projectile for 5 in. | 1.1 lbs. (499g) |
70518 | Duct Projectile for 6 in. | 1.2 lbs. (544g) |
Missile Line Carriers For 2″ to 6″ conduit
Fast blowing and vacuuming of 2″ to 6″ diameter conduit by low-friction plastic carriers. They are Easily removed from conduit if stuck or jammed.
Ordering Information
P/N | Description | Weight |
---|---|---|
70527 | Missile for 2 in. conduit | .1 lb. (45g) |
70528 | Missile for 3 in. conduit | .3 lb. (136g) |
70529 | Missile for 4 in. conduit | .3 lb. 136g) |
70531 | Missile for 5 in. conduit | .4 lb. (181g) |
70532 | Missile for 6 in. conduit | .5 lb. (227g) |