Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Questions & Answers

Code: SQ-ZA-201604

MPN: 201604

List: $2.19Save 18%
$1.79

Product Info for Streamlight Head O-Ring for Face Cap - SL15X, SL-20X Series Flash-Lights

Streamlight Face Cap O-Ring for SL15/SL20X Series Flashlights 201604 replaces the front waterproofing ring of your Streamlight SL-20X Flashlight. If you need to replace the front waterproofing o-ring of an SL-15 or SL-20X flashlight, the Streamlight O-Ring for Face Cap is the part you need.image

We are the best online store for official replacement Streamlight parts. We carry a complete line of spare parts and upgrade kits for Streamlight lights. Whether it's a dinged-up case, a lens that got dropped one too many times, or a flashlight head that's seen better days, you can replace almost any Streamlight part here!

Features of Streamlight 201604 Rings for Face Cap of SL-20X Flashlights:

  • Fits: SL-15X, SL-20X, SL-20X LED, SL-20XP, SL-20XP LED, SL-35X, 3C XP
  • Replacement face cap o-ring

Package Contents:

  • Streamlight Parts - SL-15X and SL-20X O-Ring 201604

Streamlight Head O-Ring for Face Cap - SL15X, SL-20X Series Flash-Lights Orderable Models

List of Orderable Models

  • Streamlight O-Ring, Face Cap Head O-Ring - SL-15X/SL-20X/SL-20X LED/SL-20XP/ SL-20XP LED/SL-35X/3C XP 201604 , MPN: 201604 , Code: SQ-ZA-201604
Compare (0)