There are several styles of ears seals which are standard foam filled
seals to, proprietary twin layered silicone gel filled ear seals. The
twin layered seals provide the highest noise attenuation and are extremely
comfortable due to their pliable form fitting design. ConforŪ foam
ear seals with a leatherette covers. These ear seals are heat sensitive
and mold to the shape of your ears.
Standard Twin Layer Gel Ear Seals FOR CONVENTIONAL STYLE HEADSETS
These Gel Ear Seals make my old Pilot Headset much more comfortable to wear and a little quieter too! Installing them took a bit of effort in stretching, but once installed they fit onto the plastic cups well.
No, for the Bose A20, you need to use part # 11-08743.
The ear seal will fit the PA-1151ACB childs headset.
These are designed to fit the Pilot USA headsets.