PAC International RSIC-V
The PAC International RSIC-V is a resilient furring-channel mount that clamps to 7/8" hat channel to keep isolation intact at blocking, fixtures, trims, and service penetrations. It extends the acoustic break of a resilient clip system into every accessory the finished wall needs.

- Isolation at Accessory Points: Preserves decoupling where blocking, trim, and service penetrations would otherwise re-couple the assembly to the frame.
- Channel-Clamp Attachment: Clamps directly to 7/8" hat channel without piercing the resilient assembly — installs without breaking the acoustic plane.
- Low-Profile Body: Sits flush against the channel so drywall goes on straight and reveal lines stay consistent.
- Zinc-Plated Steel: Formed steel body with plated finish resists corrosion in bath, kitchen, and mechanical-room applications.
Online orders up to 4,999 pieces. For anything larger, call (415) 864-4440 and we'll price the project with you.
Volume pricing
$2.50 per clip. Order 250+ clips and pay $2.25 per clip — an extra $0.25 off per clip for each additional 250 clips, down to a $1.75 per clip floor.
Discounts apply automatically in the cart and count boxes and cases toward the total.
RSIC-V Specifications
- Width
- 2 in
- Length
- 3 1/2 in
- Depth
- 1 in
- Max load (per clip)
- 25 lb accessory load
- Isolation element
- Attaches to resilient hat-channel system
- Compatible channel
- 7/8 in 25-gauge hat channel
Hat channel specs
- Minimum gauge
- 25 gauge (hemmed edge)
- Depth
- 7/8 in or 1 1/2 in
- Width — top
- 1 1/4 in
- Width — bottom
- 2 1/2 in max
- Fasteners (wood)
- #8 × 2 1/2" coarse thread
- Fasteners (steel)
- #8/10/12 × 1 5/8" Type S self-tapping
RSIC-V Project Calculator
Enter your surface square footage. We'll return a clip, channel, and screw count for your project — calculations run on our servers so estimates stay accurate as our field data improves.
Adds MLV over Good for a denser limp-mass layer.
Estimated STC — Planning use only
This value is an approximate assembly projection, not a project-specific assessment, certified laboratory test result or performance guarantee. Actual performance varies with the complete assembly, installation, flanking paths, penetrations and site conditions.
Estimates follow the manufacturer's standard clip and hat-channel layout for walls and ceilings. A 10% coverage buffer is recommended to cover cuts and re-work.
Estimated STC Gauge
Compare how the RSIC-V performs across assembly tiers. Select an assembly below to see the estimated STC score.
RSIC-V + hat channel + MLV + double 5/8" drywall with Green Glue between layers, insulated stud wall.
Estimated STC — Planning use only
This value is an approximate assembly projection, not a project-specific assessment, certified laboratory test result or performance guarantee. Actual performance varies with the complete assembly, installation, flanking paths, penetrations and site conditions.
- STC 30-39: Loud speech clearly audible next room.
- STC 40-49: Loud speech muffled — normal residential wall.
- STC 50-59: Loud speech barely audible; suitable for offices & multi-family.
- STC 60+: Approaches studio-grade isolation.
How RSIC-V compares
| Model | Primary Use | Hat Channel | Typical Layout | Isolation Element |
|---|---|---|---|---|
| RSIC-Vthis | Furring-channel mount for accessories & penetrations | 7/8" 25-ga | ≤24" o.c. channel · ≤48" o.c. clips | Resilient rubber / elastomer |
| RSIC-1 | Baseline resilient isolation clip | 7/8" 25-ga | ≤24" o.c. channel · ≤48" o.c. clips | Molded rubber isolator |
| Resilmount A237R | Resilient sound isolation clip (Resilmount) | 7/8" or 1 1/2" 25-ga | ≤24" o.c. channel · ≤48" o.c. clips | Thermoplastic rubber sound cells |
Applicable Assemblies
See where the RSIC-V fits — from budget baseline to studio-grade isolation.
Best — RSIC-V + Insulation + MLV + Double Drywall + Green Glue
Stud wall · Rockwool insulation · RSIC-V + hat channel · MLV · 5/8" drywall · Green Glue · 5/8" drywall · acoustic sealant.
Better — RSIC-V + Double Drywall + Green Glue
Stud wall · Rockwool insulation · RSIC-V + hat channel · 5/8" drywall · Green Glue · 5/8" drywall · acoustic sealant.
Good — RSIC-V + Silent FX Drywall
Stud wall · Rockwool insulation · RSIC-V + hat channel · Silent FX damped drywall · acoustic sealant.



