880 O-Rings - Know the Facts.

NOTE THIS IS NOT A HACK. Daisy uses standard SAE rings: A113, A012. Danco easily equal to nitrile OEM. Nitrile is the rubber of your OEM rings and all kits shown in video.

EPDM are actually better - more expensive - plumbing ring that last longer in water. Petroleum destroys them. Avoid them for 880.

From Danco:

"Danco o-rings will withstand heat between a temperature range of 86°F to 248°F (-30°C to 120°C). These tough and pliable Buna-Nitrile Rubber (NBR) o-rings will help provide long-term use for your plumbing needs. This o ring assortment kit is perfect for your faucet repair. Order yours today!"

Marco Rubber:

"Buna-N o-rings also referred to as NBR o-rings and Nitrile o-rings are the most widely used o-ring material in the world because of low cost, good mechanical performance with resistance to water, most basic oils, lubricants and some fuels, many pneumatic, hydraulic systems, and the default choice for basic applications. Buna-N o-rings are not recommended for exposure to sunlight, UV light, ozone and general outdoor weathering or harsh chemicals, acids, keytones and many others."

House Repair Talk:

"Typically, the nitrile O-rings sold for plumbing applications by companies like Master Plumber or Plumb Shop will be made of nitrile rubber (formerly called "Buna-N" rubber and correctly called acrylonitrile butadiene terpolymer) only because nitrile rubber parts are about 1/4 the cost of EPDM rubber which is considerably more resistant to both fresh water and chlorinated tap water. That term "resistant" means that it's properties don't change when exposed to that fluid, and that means that EPDM O-rings will continue bahaving like they were new for a longer period of time than nitrile O-rings when exposed to chlorinated water.

"Economics is the crux of the matter here because nitrile O-rings for household plumbing applications will cost anywhere up to 25 cents each, whereas the same size O-rings in EPDM rubber will be anywhere from a dime to a dollar. Companies like Plumb Shop and Master Plumber know that they can get their brand into more stores if their product sells for 1/4 the cost of their competitors, especially considering that nitrile and EPDM rubbers are indistinguishable from each other by simple inspection, and with most people totally ignorant about rubber compounds."

White Cross Rubber Products:

Elastomer (Rubber) - Oil Resistance

Nitrile - Excellent (👍)

Viton - Excellent

Epichlorohydrin - Excellent

Polyurethane - Good

Vamac - Poor

Hypalon - Poor

Neoprene - Poor

Silicone - Poor

Thermoplastic - Poor

Butyl - Poor

EPDM - Poor (👎)

Natural Rubber - Poor

EPDM materials are most commonly used in applications involving solvents, acids, and other aggressive chemicals. EPDM has very poor compatibility with most mineral and petroleum based oils and is seldom used in those applications.