- See all product specifications
Manufacturer : 3M
Brand Name : 3M™
Country Of Origin : CN
Package Height : 1 in
Package Length : 2.5 in
Package Weight : 0.06 lb
Product Status : Active
- 3M PSD products are for occupational use only
- NOTE - 3M strongly recommends fit testing of hearing protectors
- Research suggests that many users will receive less noise reduction than indicated by the NRR due to variation in hearing protector fit, fitting skill and motivation of the user
- If the NRR is used, 3M recommends that it be reduced by 50% or in accordance with applicable regulations
- Adapter has 5/8" end to attach to black speaker stand and 1/4" end to screw into bottom of speaker
- 3M™ E-A-Rfit™ Dual-Ear 1/4-20 to 5/8-27 Speaker Stand Adapter is designed to attach the 3M™ E-A-Rfit™ Enclosure Assembly Speaker to the speaker stand. These accessories work with the 3M™ E-A-Rfit™ Dual-Ear Validation System to help employers determine whether workers are getting adequate hearing protection.


