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50*75*110 Pipe-Type Bathroom Drain Soundproof Cotton Self-Adhesive Quiet Cotton Noise-Reducing Self-Adhesive Sound Insulation Felt
Powerful sound insulation 50dB
Brand new noise reduction technology, hassle-free, one-step soundproofing
Wide frequency 100-5KHz, sound absorption index reaches 1.0S
Three tube diameters for easy fit
Suitable for all elbows, clean in j














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