Anco 31-Series Conventional Wiper Blade

The 31-Series uses a single pinch-tab connector (Anco's KwikConnect mount) and includes no other adapters. It is the correct fitment only for vehicles whose wiper arms use a pinch-tab connector — common on older domestic vehicles, fleet vehicles, light trucks, and certain aftermarket arms. Vehicles whose arms use the J-hook standard (most post-2000 passenger cars), pin-top, side-pin, top-lock, or bayonet connector cannot physically attach to this blade. Confirm your arm type before ordering.

Anco lists the blade element as DuraKlear, its proprietary rubber compound. The Amazon listing labels the material generically as 'Rubber.' Neither source discloses whether the compound is natural rubber, EPDM synthetic rubber, or a blend. Because composition is undisclosed, the health score does not apply the natural-rubber latex deduction and the durability score does not credit EPDM longevity — both sit in conservative middle ranges until material is confirmed.

Conventional. The 31-Series uses a vented bracket frame with multiple articulated pressure points along the rubber element — the traditional wiper architecture that predates beam (bracketless) designs. Beam wipers apply even pressure across the full arc and resist ice accumulation in the frame; conventional bracket wipers apply pressure only at the fixed contact points and are structurally susceptible to ice packing in the bracket joints in freezing rain.

Anco does not publish a stated replacement interval, and product-specific community follow-up data was not sampled in this build. The category-typical commodity-rubber lifespan per environment.md is 6–9 months in UV-exposed climates; the EPDM mid-tier category median is 9–14 months. Without confirmed material composition or product-specific long-term reviews, neither tier can be credited.

Amazon lists the 31-Series as carrying a California Proposition 65 warning. The most common Prop 65 substance in automotive rubber products is carbon black (IARC Group 2B carcinogen), which is widely used as a reinforcing filler in EPDM and natural rubber compounds. Anco does not publicly identify the specific listed substance for the 31-Series. The warning is informational for a passive accessory with no chemical exposure pathway in normal use, but it does mark the product as flagged in the published_flag lifecycle state.