Electronic and self-closing mixers 449 Electronic and Electronic mixers 450 self-closing mixers L-90E 452 M3-E 452 M2-E 452 L20-E 453 Loft-E 453 Sentronic-E 454 Intstant Foot 454 Sentronic-S 455 Sentronic-V 456 Self-closing mixers 458 Avant 460 Instant 462 Sprint 463 Fluxors for WC 464 Fluxors for urinals 464 Recommended mixers for urinals 465 Novelty