** Plumbing and air conditioning equipment supplier Ferguson Enterprises' shares down ~8% at $199.99 premarket

** Company posts Q1 net sales of $7.77 bln vs est $7.83 bln, adj EPS of $2.45 vs est $2.62 - LSEG

** Ferguson says continued weakness in certain commodity-related categories drove ~2% overall price deflation, while volumetric growth, cost inflation and continued investment in core capabilities hurt profits

** Company reiterates FY 2025 forecasts

** As of Monday's close, stock up 12.8% YTD

(Reporting by Neil J Kanatt in Bengaluru) ((Neil.JKanatt@thomsonreuters.com))