Vortens toilet fill valve replacement
Vortens uses universal 2.5-inch shank fill valve pattern across all residential models. Fluidmaster 400A drops in directly at $10-$15 from any Home Depot or Lowes. No adapter required (unlike Eljer's proprietary 3-inch shank).
Fluidmaster 400A — Vortens-compatible direct fit
| Spec | Vortens factory | Fluidmaster 400A |
|---|---|---|
| Shank diameter | 2.5 inch universal | 2.5 inch universal |
| Height adjustment | 10-14 inches | 9-14 inches |
| Refill rate | 1.0-1.5 GPM | 1.5-2.0 GPM |
| Anti-siphon protection | Yes | Yes |
| Cost | $20-$35 OEM via Vitromex | $10-$15 retail |
| Warranty | 1 year (Vortens) | 5 years (Fluidmaster) |
Vortens fill valve compatibility
Universal 2.5-inch shank fits all Vortens residential models:
- 3464A elongated
- 3414A round-front
- Cascade compact-elongated
- Lugano one-piece traditional
- Onika one-piece skirted (limited service access — longer Fluidmaster install reach)
- Cancun dual-flush (standard fill valve; the dual-flush cartridge is separate)
When to replace
- Tank refills slowly (sediment-clogged diaphragm)
- Refill incomplete (shut-off too low)
- Continuous hissing/whistling
- Phantom refill cycles
- Visible leak from valve top
Replacement procedure (25 min)
- Shut off water at under-toilet shutoff valve
- Flush to empty tank
- Disconnect supply line from bottom of tank
- Sponge out remaining water
- From inside tank, unscrew fill valve lock nut from underneath
- Lift old valve out
- Install Fluidmaster 400A: insert through shank hole, hand-tighten lock nut
- Adjust valve height: top sits 1" above water line
- Connect supply line
- Position refill tube terminating inside overflow tube
- Restore water, adjust float for correct water level
- Test 3-5 flushes
Common service mistakes
- Lock nut overtightened: cracks porcelain
- Anti-siphon vent below water line: siphons dirty bowl water
- Refill tube not in overflow: wastes water
- Float adjustment wrong: water level off
- Old supply line reused: replace at install
- Onika limited access: use shorter wrenches
Service life
Typical Vortens fill valve service life: 8-12 years. Slightly shorter than industry average due to lower-cost Vitromex production. Hard-water Sun Belt areas (where Vortens dominantly distributes) shorten to 6-9 years.
Where to buy
- Home Depot: Fluidmaster 400A at $10-$15
- Lowes: Fluidmaster 400A at $10-$15
- Amazon: Fluidmaster 400A at $9-$13
Alternatives
- Fluidmaster 400A standard universal ($10-$15) — recommended
- Fluidmaster 400CR Pro quieter ($14-$18)
- Korky 528MP multi-shank ($12-$16)
- Korky 818-72BP QuietFill ultra-quiet ($16-$22)