Check which Arco accessories fit your machine's portafilter size before you buy. Our guide covers 58mm and 53mm portafilter systems, including tampers, distribution tools, filter baskets, and bottomless portafilters.
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{"portafilter_sizes": [{"size": "58mm","machines": ["arco-classica","arco-barista-pro","arco-lever","arco-maestro","arco-dual-boiler"],"description": "Industry-standard 58mm portafilter. Compatible with the widest range of aftermarket accessories."},{"size": "53mm","machines": ["arco-nano"],"description": "Compact 53mm portafilter designed for the Nano's smaller group head. Requires size-specific accessories."},{"size": "n/a","machines": ["arco-automatico","arco-steam"],"description": "The Automatico uses an internal brew unit (no portafilter). The Steam uses a proprietary pressurized holder."}],"accessories": [{"id": "arco-precision-tamper-58","name": "Arco Precision Tamper 58mm","category": "tamper","compatible_sizes": ["58mm"],"price": 49,"notes": "Spring-loaded calibrated tamper. Ensures consistent 30lb tamp pressure. Fits all Arco 58mm machines."},{"id": "arco-precision-tamper-53","name": "Arco Precision Tamper 53mm","category": "tamper","compatible_sizes": ["53mm"],"price": 39,"notes": "Compact version for the Arco Nano. Same calibrated spring mechanism as the 58mm."},{"id": "arco-wdt-tool","name": "Arco WDT Distribution Tool","category": "distribution","compatible_sizes": ["58mm","53mm"],"price": 29,"notes": "0.4mm needles break up clumps before tamping. Universal fit — works with any portafilter diameter."},{"id": "arco-leveling-tamper-58","name": "Arco Leveling Tamper 58mm","category": "distribution","compatible_sizes": ["58mm"],"price": 45,"notes": "Combined distributor and tamper in one tool.